v0.8.0: enrich XMP metadata

AGENT.md

@@ -12,4 +12,6 @@
 - Manifest backends: JSONL default, SQLite optional via `modernc.org/sqlite`.
 - Preserve manifest compatibility and migration behavior.
 - XMP sidecars are opt-in via `--sidecar xmp`; default must remain `none`.
+- Reverse geocoding is opt-in via `--reverse-geocode`, uses MapKit on macOS 26+, and must fail safely on older macOS without failing export.
+- Do not claim Photos people/animal/object labels are exported unless Vision/Core ML analysis is explicitly implemented.
 - Do not commit generated artifacts from `bin/` or coverage files.

CHANGELOG.md

@@ -2,6 +2,16 @@
 
 This changelog is maintained from git history plus the published Gitea release series. Future releases should update this file and publish matching release notes on the release page.
 
+## v0.8.0
+
+Rich PhotoKit metadata and reverse-geocoded XMP release.
+
+- Expand asset metadata from public PhotoKit fields: modification date, hidden state, media subtypes, source type, playback style, burst data, GPS coordinates, adjustment state, adjustment info, and richer resource metadata.
+- Expand XMP sidecars with duration, hidden/adjustment state, modification date, structured media subtype/burst/resource lists, GPS coordinates, and adjustment metadata.
+- Add opt-in `--reverse-geocode` using Apple reverse geocoding APIs to add address metadata for GPS assets.
+- Cache reverse-geocode results under `.photoscli/geocode-cache.jsonl` so repeated exports do not repeatedly query Apple geocoding.
+- Keep Vision/Core ML people, animal, object, and scene analysis out of this release; that remains future work.
+
 ## v0.7.0
 
 XMP sidecar metadata release.

Makefile

@@ -1,6 +1,6 @@
 BINARY     := ./bin/photoscli
 MODULE     := gitea.k3s.k0.nu/tools/photocli
-VERSION    := 0.7.0
+VERSION    := 0.8.0
 RELEASE_ZIP := ./bin/photoscli-$(VERSION)-macos-arm64.zip
 RELEASE_NOTES := RELEASE_NOTES.md
 BRIDGE_DIR := bridge
@@ -20,7 +20,7 @@ $(LIB): $(OBJ)
 	ar rcs $@ $<
 
 $(OBJ): $(BRIDGE_DIR)/photokit_bridge.m $(BRIDGE_DIR)/photokit_bridge.h
-	cc -c -x objective-c -fobjc-arc -framework Photos -framework Foundation -o $@ $<
+	cc -c -x objective-c -fobjc-arc -o $@ $<
 
 $(STUB_LIB): $(STUB_OBJ)
 	ar rcs $@ $<

README.md

@@ -21,7 +21,8 @@ For a practical step-by-step manual with recommended backup workflows, recovery
 - Deduplicated failure management with `failures list`, `failures clear`, and `retry-failed --clear-on-success`.
 - Verification, reporting, and diff commands for backup integrity.
 - Status command for quick backup summaries.
-- Opt-in XMP sidecar metadata with `--sidecar xmp`.
+- Opt-in rich XMP sidecar metadata with `--sidecar xmp`.
+- Optional Apple MapKit reverse geocoding for GPS assets on macOS 26+ with `--reverse-geocode`.
 - Script-friendly exit codes and optional JSON summaries.
 - 100% test coverage for the Go CLI and parsing layers.
 
@@ -166,6 +167,7 @@ photoscli export --album-id "Favorites" --out ./favorites --only-favorites
 photoscli export --album-id "Videos" --out ./videos --media videos --include-videos
 photoscli export --album-id "Archive" --out ./archive --originals --retry 3
 photoscli export --album-id "Vacation" --out ./vacation --date-template YYYY/MM/DD
+photoscli export --album-id "Vacation" --out ./vacation --sidecar xmp --reverse-geocode
 ```
 
 ### `backup-all`
@@ -186,6 +188,7 @@ photoscli backup-all --out ./backup --exclude-album "Recently Deleted" --exclude
 photoscli backup-all --out ./backup --since 2024-01-01 --sort newest
 photoscli backup-all --out ./backup --concurrency 8 --retry 3
 photoscli backup-all --out ./backup --dry-run --json
+photoscli backup-all --out ./backup --sidecar xmp --reverse-geocode
 ```
 
 ### `report`
@@ -278,6 +281,7 @@ Common flags for `export` and `backup-all`:
 - `--max-size <n>`: filter by estimated pixel count.
 - `--format jpeg|heic|png`: preview format hint. Current bridge output is still the existing preview path; non-JPEG bridge output is future work.
 - `--sidecar none|xmp`: write opt-in XMP metadata sidecars next to exported files.
+- `--reverse-geocode`: with `--sidecar xmp`, add cached Apple MapKit address metadata for GPS assets on macOS 26+.
 - `--date-template <template>`: append date folders based on creation date, for example `YYYY/MM/DD`.
 
 `backup-all` also supports:
@@ -347,6 +351,8 @@ IMG_0001.HEIC -> IMG_0001.xmp
 
 The XMP contains photoscli metadata such as asset ID, filenames, album, manifest path, media type, dimensions, favorite state, cloud state, export mode, version, exported timestamp, size, and creation date when available. If `--sidecar xmp` is explicitly selected and the sidecar cannot be written, that asset is treated as failed.
 
+In v0.8.0, sidecars also include richer public PhotoKit metadata where available: modification date, duration, hidden state, adjustment state, media subtypes, source type, playback style, burst data, GPS coordinates, adjustment info, and structured asset resources. Add `--reverse-geocode` to include cached address fields from Apple MapKit for assets with GPS coordinates. Reverse geocoding requires macOS 26 or newer; on older macOS versions the export continues and XMP still includes GPS coordinates.
+
 ## Failure Tracking
 
 Failed exports are deduplicated by asset ID and stored in:

RELEASE_NOTES.md

@@ -1,20 +1,20 @@
-# v0.7.0
+# v0.8.0
 
-This release adds opt-in XMP sidecar metadata for archival exports.
+This release expands XMP sidecars with richer public PhotoKit metadata and adds optional reverse geocoding through Apple MapKit on macOS 26 or newer.
 
 ## Highlights
 
-- Add `--sidecar none|xmp` with default `none`.
+- XMP sidecars now include richer public PhotoKit metadata: modification date, duration, hidden state, adjustment state, media subtypes, source type, playback style, burst data, GPS coordinates, adjustment info, and structured asset resources when available.
-- Write XMP sidecars next to exported files when `--sidecar xmp` is selected.
+- Add `--reverse-geocode` to enrich GPS assets with cached address metadata from Apple MapKit on macOS 26+.
-- XMP files use the exported file basename, for example `IMG_0001.jpg` -> `IMG_0001.xmp`.
+- On older macOS versions, reverse geocoding is skipped safely; export continues and GPS coordinates remain in XMP.
-- Sidecars include photoscli metadata such as asset ID, filenames, album, manifest path, media type, dimensions, favorite state, cloud state, export mode, version, exported timestamp, size, and creation date when available.
+- Reverse-geocode cache is stored under `.photoscli/geocode-cache.jsonl` in the backup root.
-- XMP writes are atomic and fail the asset when explicitly requested sidecar output cannot be written.
+- Existing `--sidecar xmp` behavior remains opt-in and atomic; sidecar write failure still fails that asset.
-- Config files can set `sidecar = "xmp"`.
+- Vision/Core ML people, animal, object, and scene analysis is not included in this release.
 
 ## Assets
 
 - `photoscli`: Apple Silicon macOS binary (`darwin/arm64`).
-- `photoscli-0.7.0-macos-arm64.zip`: Apple Silicon binary plus README, USERGUIDE, and CHANGELOG.
+- `photoscli-0.8.0-macos-arm64.zip`: Apple Silicon binary plus README, USERGUIDE, and CHANGELOG.
 - `USERGUIDE.md`: standalone user guide.
 
 Intel Macs are not currently a supported release target.

USERGUIDE.md

@@ -23,6 +23,7 @@ It is especially useful when you want to:
 - Detect missing, zero-byte, and size-mismatched manifest files.
 - Inspect or clear deduplicated failure records.
 - Write optional XMP sidecar metadata for archival workflows.
+- Add optional reverse-geocoded address metadata to XMP sidecars for GPS assets.
 - Script Photos exports with stable exit codes.
 
 It is not intended to replace Apple Photos, iCloud Photos, or Time Machine. Think of it as an additional file-based export and backup tool.
@@ -554,7 +555,15 @@ IMG_0001.jpg -> IMG_0001.xmp
 IMG_0001.HEIC -> IMG_0001.xmp
 ```
 
-The XMP includes photoscli archive metadata such as asset ID, original filename, exported filename, album, manifest path, media type, dimensions, favorite state, cloud state, export mode, version, exported time, size, and creation date when available.
+The XMP includes photoscli archive metadata such as asset ID, original filename, exported filename, album, manifest path, media type, dimensions, favorite state, hidden state, cloud state, export mode, version, exported time, size, creation date, modification date, duration, adjustment state, media subtypes, source type, playback style, burst data, GPS coordinates, adjustment info, and structured asset resources when PhotoKit exposes them.
+
+For address metadata from GPS coordinates, opt in to Apple's reverse geocoder:
+
+```bash
+./bin/photoscli export --album-id "Vacation" --out ./Vacation --sidecar xmp --reverse-geocode
+```
+
+Reverse geocoding uses Apple MapKit and requires macOS 26 or newer. It can require network access and may be rate-limited by Apple, so results are cached in `.photoscli/geocode-cache.jsonl` under the backup root. On older macOS versions, `--reverse-geocode` is treated as unavailable: the export continues, no address fields are added, and the XMP still contains GPS coordinates.
 
 If you explicitly request `--sidecar xmp` and the XMP file cannot be written, the asset is counted as failed.
 
@@ -578,6 +587,7 @@ media = "photos"
 retry = 3
 log = true
 sidecar = "xmp"
+reverse-geocode = true
 ```
 
 Use a custom config path:

bridge/photokit_bridge.h

@@ -20,6 +20,8 @@ char *photos_list_albums_json(void);
 
 char *photos_list_assets_json(const char *album_id);
 
+char *photos_reverse_geocode_json(double latitude, double longitude);
+
 char *photos_export_preview_json(
     const char *asset_id,
     const char *output_dir,

bridge/photokit_bridge.m

@@ -1,6 +1,8 @@
 #import <Foundation/Foundation.h>
 #import <AppKit/AppKit.h>
 #import <Photos/Photos.h>
+#import <CoreLocation/CoreLocation.h>
+#import <MapKit/MapKit.h>
 #import <UniformTypeIdentifiers/UniformTypeIdentifiers.h>
 #import <objc/message.h>
 #import "photokit_bridge.h"
@@ -311,6 +313,87 @@ static NSString *media_type_string(PHAssetMediaType type) {
     }
 }
 
+static NSString *source_type_string(PHAssetSourceType type) {
+    NSMutableArray *parts = [NSMutableArray array];
+    if (type & PHAssetSourceTypeUserLibrary) [parts addObject:@"userLibrary"];
+    if (type & PHAssetSourceTypeCloudShared) [parts addObject:@"cloudShared"];
+    if (type & PHAssetSourceTypeiTunesSynced) [parts addObject:@"iTunesSynced"];
+    return parts.count > 0 ? [parts componentsJoinedByString:@","] : @"unknown";
+}
+
+static NSString *playback_style_string(PHAssetPlaybackStyle style) {
+    switch (style) {
+        case PHAssetPlaybackStyleImage: return @"image";
+        case PHAssetPlaybackStyleImageAnimated: return @"imageAnimated";
+        case PHAssetPlaybackStyleLivePhoto: return @"livePhoto";
+        case PHAssetPlaybackStyleVideo: return @"video";
+        case PHAssetPlaybackStyleVideoLooping: return @"videoLooping";
+        default: return @"unknown";
+    }
+}
+
+static NSArray<NSString *> *media_subtype_strings(PHAssetMediaSubtype subtypes) {
+    NSMutableArray *parts = [NSMutableArray array];
+    if (subtypes & PHAssetMediaSubtypePhotoPanorama) [parts addObject:@"photoPanorama"];
+    if (subtypes & PHAssetMediaSubtypePhotoHDR) [parts addObject:@"photoHDR"];
+    if (subtypes & PHAssetMediaSubtypePhotoScreenshot) [parts addObject:@"photoScreenshot"];
+    if (subtypes & PHAssetMediaSubtypePhotoLive) [parts addObject:@"photoLive"];
+    if (subtypes & PHAssetMediaSubtypePhotoDepthEffect) [parts addObject:@"photoDepthEffect"];
+    if (subtypes & PHAssetMediaSubtypeVideoStreamed) [parts addObject:@"videoStreamed"];
+    if (subtypes & PHAssetMediaSubtypeVideoHighFrameRate) [parts addObject:@"videoHighFrameRate"];
+    if (subtypes & PHAssetMediaSubtypeVideoTimelapse) [parts addObject:@"videoTimelapse"];
+    return parts;
+}
+
+static NSArray<NSString *> *burst_selection_type_strings(PHAssetBurstSelectionType types) {
+    NSMutableArray *parts = [NSMutableArray array];
+    if (types & PHAssetBurstSelectionTypeAutoPick) [parts addObject:@"autoPick"];
+    if (types & PHAssetBurstSelectionTypeUserPick) [parts addObject:@"userPick"];
+    return parts;
+}
+
+static NSNumber *resource_file_size(PHAssetResource *res) {
+    @try {
+        id value = [res valueForKey:@"fileSize"];
+        if ([value respondsToSelector:@selector(longLongValue)]) {
+            return @([value longLongValue]);
+        }
+    } @catch (NSException *e) {}
+    return nil;
+}
+
+static NSDictionary *location_dict(CLLocation *location) {
+    if (!location) return nil;
+    NSMutableDictionary *dict = [NSMutableDictionary dictionary];
+    dict[@"latitude"] = @(location.coordinate.latitude);
+    dict[@"longitude"] = @(location.coordinate.longitude);
+    dict[@"altitude"] = @(location.altitude);
+    dict[@"horizontalAccuracy"] = @(location.horizontalAccuracy);
+    return dict;
+}
+
+static NSDictionary *editing_input_info(PHAsset *asset) {
+    PHContentEditingInputRequestOptions *opts = [[PHContentEditingInputRequestOptions alloc] init];
+    opts.networkAccessAllowed = NO;
+    dispatch_semaphore_t sem = dispatch_semaphore_create(0);
+    __block NSMutableDictionary *dict = [NSMutableDictionary dictionary];
+    [asset requestContentEditingInputWithOptions:opts completionHandler:^(PHContentEditingInput *input, NSDictionary *info) {
+        if (input.adjustmentData) {
+            dict[@"formatIdentifier"] = input.adjustmentData.formatIdentifier ?: @"";
+            dict[@"formatVersion"] = input.adjustmentData.formatVersion ?: @"";
+        }
+        NSURL *url = input.fullSizeImageURL;
+        if (url.lastPathComponent.length > 0) {
+            dict[@"baseFilename"] = url.lastPathComponent;
+        }
+        dispatch_semaphore_signal(sem);
+    }];
+    if (!semaphore_wait_with_timeout(sem, 5)) {
+        return nil;
+    }
+    return dict.count > 0 ? dict : nil;
+}
+
 static NSString *iso8601_string(NSDate *date) {
     if (!date) return nil;
     static NSDateFormatter *fmt = nil;
@@ -355,18 +438,22 @@ char *photos_list_assets_json(const char *album_id) {
         NSString *mediaTypeStr = media_type_string(asset.mediaType);
 
         NSString *creationDateStr = iso8601_string(asset.creationDate);
+        NSString *modificationDateStr = iso8601_string(asset.modificationDate);
 
         NSMutableArray *resourcesList = [NSMutableArray arrayWithCapacity:resources.count];
         for (PHAssetResource *res in resources) {
             NSString *resTypeStr = resource_type_string(res.type);
             NSString *uti = res.uniformTypeIdentifier ?: @"";
             BOOL isLocal = resource_is_locally_available(res);
-            [resourcesList addObject:@{
+            NSMutableDictionary *resourceDict = [NSMutableDictionary dictionaryWithDictionary:@{
                 @"type": resTypeStr,
                 @"filename": res.originalFilename ?: @"",
                 @"uti": uti,
                 @"local": @(isLocal)
             }];
+            NSNumber *size = resource_file_size(res);
+            if (size) resourceDict[@"size"] = size;
+            [resourcesList addObject:resourceDict];
         }
 
         NSMutableDictionary *dict = [NSMutableDictionary dictionaryWithDictionary:@{
@@ -374,17 +461,37 @@ char *photos_list_assets_json(const char *album_id) {
             @"filename": filename ?: @"",
             @"cloud": cloudStatus,
             @"mediaType": mediaTypeStr,
+            @"mediaSubtypes": media_subtype_strings(asset.mediaSubtypes),
+            @"sourceType": source_type_string(asset.sourceType),
+            @"playbackStyle": playback_style_string(asset.playbackStyle),
             @"pixelWidth": @(asset.pixelWidth),
             @"pixelHeight": @(asset.pixelHeight),
             @"duration": @(asset.duration),
-            @"isFavorite": @(asset.isFavorite)
+            @"isFavorite": @(asset.isFavorite),
+            @"isHidden": @(asset.isHidden),
+            @"representsBurst": @(asset.representsBurst),
+            @"burstSelectionTypes": burst_selection_type_strings(asset.burstSelectionTypes)
         }];
         if (creationDateStr) {
             dict[@"creationDate"] = creationDateStr;
         }
+        if (modificationDateStr) {
+            dict[@"modificationDate"] = modificationDateStr;
+        }
+        NSDictionary *loc = location_dict(asset.location);
+        if (loc) {
+            dict[@"location"] = loc;
+        }
+        if (asset.burstIdentifier.length > 0) {
+            dict[@"burstIdentifier"] = asset.burstIdentifier;
+        }
         if (@available(macOS 12, *)) {
             dict[@"hasAdjustments"] = @(asset.hasAdjustments);
         }
+        NSDictionary *adjustmentInfo = editing_input_info(asset);
+        if (adjustmentInfo) {
+            dict[@"adjustmentInfo"] = adjustmentInfo;
+        }
         if (resourcesList.count > 0) {
             dict[@"resources"] = resourcesList;
         }
@@ -394,6 +501,36 @@ char *photos_list_assets_json(const char *album_id) {
     return json_from_object(@{@"assets": list, @"total": @(assets.count)});
 }
 
+char *photos_reverse_geocode_json(double latitude, double longitude) {
+    if (@available(macOS 26.0, *)) {
+        CLLocation *location = [[CLLocation alloc] initWithLatitude:latitude longitude:longitude];
+        MKReverseGeocodingRequest *request = [[MKReverseGeocodingRequest alloc] initWithLocation:location];
+        dispatch_semaphore_t sem = dispatch_semaphore_create(0);
+        __block MKMapItem *item = nil;
+        __block NSError *mapErr = nil;
+        [request getMapItemsWithCompletionHandler:^(NSArray<MKMapItem *> *mapItems, NSError *error) {
+            mapErr = error;
+            item = mapItems.firstObject;
+            dispatch_semaphore_signal(sem);
+        }];
+        if (!semaphore_wait_with_timeout(sem, 10)) {
+            [request cancel];
+            return json_from_object(@{@"error": @"timeout waiting for reverse geocode"});
+        }
+        if (mapErr || !item) {
+            NSString *msg = mapErr.localizedDescription ?: @"reverse geocode failed";
+            return json_from_object(@{@"error": msg});
+        }
+        NSMutableDictionary *dict = [NSMutableDictionary dictionary];
+        if (item.name) dict[@"name"] = item.name;
+        if (item.address.fullAddress) dict[@"formattedAddress"] = item.address.fullAddress;
+        if (item.address.shortAddress) dict[@"thoroughfare"] = item.address.shortAddress;
+        return json_from_object(@{@"placemark": dict});
+    }
+
+    return json_from_object(@{@"error": @"reverse geocoding requires macOS 26 or newer"});
+}
+
 char *photos_list_tree_json(void) {
     PHFetchResult<PHCollection *> *collections = [PHCollectionList fetchTopLevelUserCollectionsWithOptions:nil];
 

bridge/photokit_bridge_stub.c

@@ -18,9 +18,11 @@ static int stub_access_rc = 0;
 static const char *stub_albums_json = "{\"albums\":[]}";
 static const char *stub_assets_json = "{\"assets\":[]}";
 static const char *stub_tree_json = "{\"collections\":[]}";
+static const char *stub_geocode_json = "{\"placemark\":{}}";
 static int stub_albums_null = 0;
 static int stub_assets_null = 0;
 static int stub_tree_null = 0;
+static int stub_geocode_null = 0;
 static int stub_cancelled = 0;
 static const char *stub_export_preview_json = NULL;
 static const char *stub_export_original_json = NULL;
@@ -34,6 +36,8 @@ void photos_test_set_access(int rc) { stub_access_rc = rc; }
 void photos_test_set_albums(const char *json) { stub_albums_json = json; stub_albums_null = 0; }
 void photos_test_set_assets(const char *json) { stub_assets_json = json; stub_assets_null = 0; }
 void photos_test_set_tree(const char *json) { stub_tree_json = json; stub_tree_null = 0; }
+void photos_test_set_geocode(const char *json) { stub_geocode_json = json; stub_geocode_null = 0; }
+void photos_test_set_geocode_null(void) { stub_geocode_null = 1; }
 void photos_test_set_albums_null(void) { stub_albums_null = 1; }
 void photos_test_set_assets_null(void) { stub_assets_null = 1; }
 void photos_test_set_tree_null(void) { stub_tree_null = 1; }
@@ -51,6 +55,13 @@ char *photos_list_assets_json(const char *album_id) {
     return alloc_json(stub_assets_json);
 }
 
+char *photos_reverse_geocode_json(double latitude, double longitude) {
+    (void)latitude;
+    (void)longitude;
+    if (stub_geocode_null) return NULL;
+    return alloc_json(stub_geocode_json);
+}
+
 char *photos_export_preview_json(const char *asset_id, const char *output_dir, int target_size, int quality, int index, int slot_index) {
     (void)asset_id;
     (void)output_dir;

cmd/photoscli/main.go

@@ -31,17 +31,18 @@ var (
 )
 
 type exportOptions struct {
-	dryRun        bool
+	dryRun         bool
-	retry         int
+	retry          int
-	onlyFavorites bool
+	onlyFavorites  bool
-	media         string
+	media          string
-	jsonOut       bool
+	jsonOut        bool
-	verify        bool
+	verify         bool
-	format        string
+	format         string
-	sidecar       string
+	sidecar        string
-	minSize       int64
+	reverseGeocode bool
-	maxSize       int64
+	minSize        int64
-	dateTemplate  string
+	maxSize        int64
+	dateTemplate   string
 }
 
 type commandSummary struct {
@@ -216,6 +217,10 @@ COMMON EXPORT FLAGS
       Write opt-in XMP sidecar metadata next to each exported file. Default:
       none. If XMP writing fails, the asset is counted as failed.
 
+  --reverse-geocode
+      With --sidecar xmp, use Apple MapKit on macOS 26+ to add address metadata
+      for assets with GPS coordinates. Results are cached under .photoscli.
+
 FILTERING AND SELECTION
   --since <date>
       Include only assets on or after a date. Accepts YYYY-MM-DD or RFC3339.
@@ -284,6 +289,8 @@ CONFIGURATION
       sort = "newest"
       retry = 3
       log = true
+      sidecar = "xmp"
+      reverse-geocode = true
 
   Command-line flags override config values.
 
@@ -740,22 +747,93 @@ func addManifestEntry(m manifest.Manifest, pa pendingAsset, result photos.Export
 }
 
 type xmpSidecarData struct {
-	AssetID          string
+	AssetID             string
-	OriginalFilename string
+	OriginalFilename    string
-	ExportedFilename string
+	ExportedFilename    string
-	Album            string
+	Album               string
-	AlbumPath        string
+	AlbumPath           string
-	ManifestPath     string
+	ManifestPath        string
-	MediaType        string
+	MediaType           string
-	PixelWidth       int
+	MediaSubtypes       []string
-	PixelHeight      int
+	SourceType          string
-	IsFavorite       bool
+	PlaybackStyle       string
-	Cloud            string
+	PixelWidth          int
-	ExportMode       string
+	PixelHeight         int
-	PhotoscliVersion string
+	Duration            float64
-	ExportedAt       string
+	IsFavorite          bool
-	Size             int64
+	IsHidden            bool
-	CreateDate       string
+	HasAdjustments      bool
+	Cloud               string
+	ExportMode          string
+	PhotoscliVersion    string
+	ExportedAt          string
+	Size                int64
+	CreateDate          string
+	ModifyDate          string
+	Location            *photos.AssetLocation
+	Placemark           *photos.Placemark
+	BurstIdentifier     string
+	RepresentsBurst     bool
+	BurstSelectionTypes []string
+	AdjustmentInfo      *photos.AdjustmentInfo
+	Resources           []photos.AssetResource
+}
+
+type geocodeCache struct {
+	path  string
+	mu    sync.Mutex
+	items map[string]photos.Placemark
+}
+
+type geocodeCacheEntry struct {
+	Key       string           `json:"key"`
+	Placemark photos.Placemark `json:"placemark"`
+}
+
+func newGeocodeCache(root string) *geocodeCache {
+	c := &geocodeCache{path: filepath.Join(root, ".photoscli", "geocode-cache.jsonl"), items: map[string]photos.Placemark{}}
+	data, err := os.ReadFile(c.path)
+	if err != nil {
+		return c
+	}
+	for _, line := range strings.Split(string(data), "\n") {
+		if strings.TrimSpace(line) == "" {
+			continue
+		}
+		var e geocodeCacheEntry
+		if json.Unmarshal([]byte(line), &e) == nil && e.Key != "" {
+			c.items[e.Key] = e.Placemark
+		}
+	}
+	return c
+}
+
+func geocodeKey(lat, lon float64) string { return fmt.Sprintf("%.5f,%.5f", lat, lon) }
+
+func (c *geocodeCache) lookup(lat, lon float64, bridge photos.Bridge) *photos.Placemark {
+	if c == nil {
+		return nil
+	}
+	key := geocodeKey(lat, lon)
+	c.mu.Lock()
+	if p, ok := c.items[key]; ok {
+		c.mu.Unlock()
+		return &p
+	}
+	c.mu.Unlock()
+	p, err := bridge.ReverseGeocode(lat, lon)
+	if err != nil {
+		return nil
+	}
+	c.mu.Lock()
+	c.items[key] = p
+	_ = os.MkdirAll(filepath.Dir(c.path), 0755)
+	if f, err := openFileFunc(c.path, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0644); err == nil {
+		_ = json.NewEncoder(f).Encode(geocodeCacheEntry{Key: key, Placemark: p})
+		_ = f.Close()
+	}
+	c.mu.Unlock()
+	return &p
 }
 
 func sidecarPath(exportedPath string) string {
@@ -772,10 +850,17 @@ func renderXMP(d xmpSidecarData) []byte {
 		{"photoscli:albumPath", d.AlbumPath},
 		{"photoscli:manifestPath", d.ManifestPath},
 		{"photoscli:mediaType", d.MediaType},
+		{"photoscli:sourceType", d.SourceType},
+		{"photoscli:playbackStyle", d.PlaybackStyle},
 		{"photoscli:pixelWidth", fmt.Sprintf("%d", d.PixelWidth)},
 		{"photoscli:pixelHeight", fmt.Sprintf("%d", d.PixelHeight)},
+		{"photoscli:duration", fmt.Sprintf("%.3f", d.Duration)},
 		{"photoscli:isFavorite", fmt.Sprintf("%t", d.IsFavorite)},
+		{"photoscli:isHidden", fmt.Sprintf("%t", d.IsHidden)},
+		{"photoscli:hasAdjustments", fmt.Sprintf("%t", d.HasAdjustments)},
 		{"photoscli:cloud", d.Cloud},
+		{"photoscli:burstIdentifier", d.BurstIdentifier},
+		{"photoscli:representsBurst", fmt.Sprintf("%t", d.RepresentsBurst)},
 		{"photoscli:exportMode", d.ExportMode},
 		{"photoscli:photoscliVersion", d.PhotoscliVersion},
 		{"photoscli:exportedAt", d.ExportedAt},
@@ -785,6 +870,38 @@ func renderXMP(d xmpSidecarData) []byte {
 	if d.CreateDate != "" {
 		attrs = append(attrs, struct{ key, val string }{"xmp:CreateDate", d.CreateDate})
 	}
+	if d.ModifyDate != "" {
+		attrs = append(attrs, struct{ key, val string }{"xmp:ModifyDate", d.ModifyDate})
+	}
+	if d.Location != nil {
+		attrs = append(attrs,
+			struct{ key, val string }{"photoscli:latitude", fmt.Sprintf("%.8f", d.Location.Latitude)},
+			struct{ key, val string }{"photoscli:longitude", fmt.Sprintf("%.8f", d.Location.Longitude)},
+			struct{ key, val string }{"photoscli:altitude", fmt.Sprintf("%.3f", d.Location.Altitude)},
+			struct{ key, val string }{"photoscli:horizontalAccuracy", fmt.Sprintf("%.3f", d.Location.HorizontalAccuracy)},
+		)
+	}
+	if d.Placemark != nil {
+		attrs = append(attrs,
+			struct{ key, val string }{"photoscli:addressName", d.Placemark.Name},
+			struct{ key, val string }{"photoscli:addressCountry", d.Placemark.Country},
+			struct{ key, val string }{"photoscli:addressCountryCode", d.Placemark.CountryCode},
+			struct{ key, val string }{"photoscli:addressRegion", d.Placemark.AdministrativeArea},
+			struct{ key, val string }{"photoscli:addressCity", d.Placemark.Locality},
+			struct{ key, val string }{"photoscli:addressSubLocality", d.Placemark.SubLocality},
+			struct{ key, val string }{"photoscli:addressStreet", strings.TrimSpace(d.Placemark.Thoroughfare + " " + d.Placemark.SubThoroughfare)},
+			struct{ key, val string }{"photoscli:addressPostalCode", d.Placemark.PostalCode},
+			struct{ key, val string }{"photoscli:addressFormatted", d.Placemark.FormattedAddress},
+			struct{ key, val string }{"photoscli:reverseGeocoder", "MapKit"},
+		)
+	}
+	if d.AdjustmentInfo != nil {
+		attrs = append(attrs,
+			struct{ key, val string }{"photoscli:adjustmentFormatIdentifier", d.AdjustmentInfo.FormatIdentifier},
+			struct{ key, val string }{"photoscli:adjustmentFormatVersion", d.AdjustmentInfo.FormatVersion},
+			struct{ key, val string }{"photoscli:adjustmentBaseFilename", d.AdjustmentInfo.BaseFilename},
+		)
+	}
 	var sb strings.Builder
 	sb.WriteString("<?xpacket begin=\"\" id=\"W5M0MpCehiHzreSzNTczkc9d\"?>\n")
 	sb.WriteString("<x:xmpmeta xmlns:x=\"adobe:ns:meta/\">\n")
@@ -797,13 +914,53 @@ func renderXMP(d xmpSidecarData) []byte {
 		xml.EscapeText(&sb, []byte(a.val))
 		sb.WriteString("\"")
 	}
-	sb.WriteString(" />\n")
+	sb.WriteString(" >\n")
+	writeStringSeq(&sb, "photoscli:mediaSubtypes", d.MediaSubtypes)
+	writeStringSeq(&sb, "photoscli:burstSelectionTypes", d.BurstSelectionTypes)
+	writeStringSeq(&sb, "photoscli:areasOfInterest", func() []string {
+		if d.Placemark == nil {
+			return nil
+		}
+		return d.Placemark.AreasOfInterest
+	}())
+	writeResourceSeq(&sb, d.Resources)
+	sb.WriteString("    </rdf:Description>\n")
 	sb.WriteString("  </rdf:RDF>\n")
 	sb.WriteString("</x:xmpmeta>\n")
 	sb.WriteString("<?xpacket end=\"w\"?>\n")
 	return []byte(sb.String())
 }
 
+func writeStringSeq(sb *strings.Builder, name string, vals []string) {
+	if len(vals) == 0 {
+		return
+	}
+	sb.WriteString("\n      <" + name + "><rdf:Seq>")
+	for _, v := range vals {
+		sb.WriteString("<rdf:li>")
+		xml.EscapeText(sb, []byte(v))
+		sb.WriteString("</rdf:li>")
+	}
+	sb.WriteString("</rdf:Seq></" + name + ">")
+}
+
+func writeResourceSeq(sb *strings.Builder, resources []photos.AssetResource) {
+	if len(resources) == 0 {
+		return
+	}
+	sb.WriteString("\n      <photoscli:resources><rdf:Seq>")
+	for _, r := range resources {
+		sb.WriteString("<rdf:li><rdf:Description")
+		for _, a := range []struct{ key, val string }{{"photoscli:resourceType", r.Type}, {"photoscli:resourceFilename", r.Filename}, {"photoscli:resourceUTI", r.UTI}, {"photoscli:resourceLocal", fmt.Sprintf("%t", r.Local)}, {"photoscli:resourceSize", fmt.Sprintf("%d", r.Size)}} {
+			sb.WriteString(" " + a.key + "=\"")
+			xml.EscapeText(sb, []byte(a.val))
+			sb.WriteString("\"")
+		}
+		sb.WriteString(" /></rdf:li>")
+	}
+	sb.WriteString("</rdf:Seq></photoscli:resources>")
+}
+
 func writeXMPSidecar(path string, data xmpSidecarData) error {
 	if err := os.MkdirAll(filepath.Dir(path), 0755); err != nil {
 		return err
@@ -825,7 +982,7 @@ func writeXMPSidecar(path string, data xmpSidecarData) error {
 	return nil
 }
 
-func writeSidecarIfNeeded(pa pendingAsset, result photos.ExportResult, originals bool, opts exportOptions) error {
+func writeSidecarIfNeeded(pa pendingAsset, result photos.ExportResult, originals bool, opts exportOptions, cache *geocodeCache, bridge photos.Bridge) error {
 	if opts.sidecar != "xmp" {
 		return nil
 	}
@@ -846,23 +1003,45 @@ func writeSidecarIfNeeded(pa pendingAsset, result photos.ExportResult, originals
 	if pa.asset.CreationDate != nil {
 		createDate = *pa.asset.CreationDate
 	}
+	modifyDate := ""
+	if pa.asset.ModificationDate != nil {
+		modifyDate = *pa.asset.ModificationDate
+	}
+	var placemark *photos.Placemark
+	if opts.reverseGeocode && pa.asset.Location != nil && cache != nil {
+		placemark = cache.lookup(pa.asset.Location.Latitude, pa.asset.Location.Longitude, bridge)
+	}
 	return writeXMPSidecar(sidecarPath(fullPath), xmpSidecarData{
-		AssetID:          pa.asset.ID,
+		AssetID:             pa.asset.ID,
-		OriginalFilename: pa.asset.Filename,
+		OriginalFilename:    pa.asset.Filename,
-		ExportedFilename: result.Filename,
+		ExportedFilename:    result.Filename,
-		Album:            pa.album,
+		Album:               pa.album,
-		AlbumPath:        pa.path,
+		AlbumPath:           pa.path,
-		ManifestPath:     relPath,
+		ManifestPath:        relPath,
-		MediaType:        pa.asset.MediaType,
+		MediaType:           pa.asset.MediaType,
-		PixelWidth:       pa.asset.PixelWidth,
+		MediaSubtypes:       pa.asset.MediaSubtypes,
-		PixelHeight:      pa.asset.PixelHeight,
+		SourceType:          pa.asset.SourceType,
-		IsFavorite:       pa.asset.IsFavorite,
+		PlaybackStyle:       pa.asset.PlaybackStyle,
-		Cloud:            result.Cloud,
+		PixelWidth:          pa.asset.PixelWidth,
-		ExportMode:       mode,
+		PixelHeight:         pa.asset.PixelHeight,
-		PhotoscliVersion: version,
+		Duration:            pa.asset.Duration,
-		ExportedAt:       time.Now().UTC().Format(time.RFC3339),
+		IsFavorite:          pa.asset.IsFavorite,
-		Size:             result.Size,
+		IsHidden:            pa.asset.IsHidden,
-		CreateDate:       createDate,
+		HasAdjustments:      pa.asset.HasAdjustments,
+		Cloud:               result.Cloud,
+		ExportMode:          mode,
+		PhotoscliVersion:    version,
+		ExportedAt:          time.Now().UTC().Format(time.RFC3339),
+		Size:                result.Size,
+		CreateDate:          createDate,
+		ModifyDate:          modifyDate,
+		Location:            pa.asset.Location,
+		Placemark:           placemark,
+		BurstIdentifier:     pa.asset.BurstIdentifier,
+		RepresentsBurst:     pa.asset.RepresentsBurst,
+		BurstSelectionTypes: pa.asset.BurstSelectionTypes,
+		AdjustmentInfo:      pa.asset.AdjustmentInfo,
+		Resources:           pa.asset.Resources,
 	})
 }
 
@@ -1004,13 +1183,25 @@ func backupTree(nodes []photos.CollectionNode, outDir string, targetSize, qualit
 }
 
 func exportPending(pending []pendingAsset, targetSize, quality int, originals bool, total int, bar *progressBar, bridge photos.Bridge, m manifest.Manifest, concurrency int, lw manifest.LogWriter, opts exportOptions) (int, int) {
-	if len(pending) < 4 {
+	var cache *geocodeCache
-		return exportPendingSerial(pending, targetSize, quality, originals, total, bar, bridge, m, lw, opts)
+	if opts.reverseGeocode && len(pending) > 0 {
+		root := pending[0].root
+		if root == "" {
+			root = pending[0].path
+		}
+		cache = newGeocodeCache(root)
 	}
-	return exportPendingParallel(pending, targetSize, quality, originals, total, bar, bridge, concurrency, m, lw, opts)
+	if len(pending) < 4 {
+		return exportPendingSerial(pending, targetSize, quality, originals, total, bar, bridge, m, lw, opts, cache)
+	}
+	return exportPendingParallel(pending, targetSize, quality, originals, total, bar, bridge, concurrency, m, lw, opts, cache)
 }
 
-func exportPendingSerial(pending []pendingAsset, targetSize, quality int, originals bool, total int, bar *progressBar, bridge photos.Bridge, m manifest.Manifest, lw manifest.LogWriter, opts exportOptions) (int, int) {
+func exportPendingSerial(pending []pendingAsset, targetSize, quality int, originals bool, total int, bar *progressBar, bridge photos.Bridge, m manifest.Manifest, lw manifest.LogWriter, opts exportOptions, cache ...*geocodeCache) (int, int) {
+	var geo *geocodeCache
+	if len(cache) > 0 {
+		geo = cache[0]
+	}
 	done := 0
 	failed := 0
 	var totalBytes int64
@@ -1039,7 +1230,7 @@ func exportPendingSerial(pending []pendingAsset, targetSize, quality int, origin
 		} else if isSkipped {
 			addManifestEntry(m, pa, result)
 		} else {
-			if sidecarErr := writeSidecarIfNeeded(pa, result, originals, opts); sidecarErr != nil {
+			if sidecarErr := writeSidecarIfNeeded(pa, result, originals, opts, geo, bridge); sidecarErr != nil {
 				failed++
 				exportErr = sidecarErr
 				isErr = true
@@ -1075,7 +1266,11 @@ func exportPendingSerial(pending []pendingAsset, targetSize, quality int, origin
 	return done, failed
 }
 
-func exportPendingParallel(pending []pendingAsset, targetSize, quality int, originals bool, total int, bar *progressBar, bridge photos.Bridge, workers int, m manifest.Manifest, lw manifest.LogWriter, opts exportOptions) (int, int) {
+func exportPendingParallel(pending []pendingAsset, targetSize, quality int, originals bool, total int, bar *progressBar, bridge photos.Bridge, workers int, m manifest.Manifest, lw manifest.LogWriter, opts exportOptions, cache ...*geocodeCache) (int, int) {
+	var geo *geocodeCache
+	if len(cache) > 0 {
+		geo = cache[0]
+	}
 	type resultEntry struct {
 		result photos.ExportResult
 		err    error
@@ -1175,7 +1370,7 @@ func exportPendingParallel(pending []pendingAsset, targetSize, quality int, orig
 		} else if isSkipped {
 			addManifestEntry(m, entry.pa, entry.result)
 		} else {
-			if sidecarErr := writeSidecarIfNeeded(entry.pa, entry.result, originals, opts); sidecarErr != nil {
+			if sidecarErr := writeSidecarIfNeeded(entry.pa, entry.result, originals, opts, geo, bridge); sidecarErr != nil {
 				failed++
 				entry.err = sidecarErr
 				isErr = true
@@ -1524,14 +1719,15 @@ func exportMode(originals bool) string {
 
 func parseExportOptions(args []string, stderr io.Writer) (exportOptions, bool) {
 	opts := exportOptions{
-		dryRun:        hasFlag(args, "--dry-run"),
+		dryRun:         hasFlag(args, "--dry-run"),
-		onlyFavorites: hasFlag(args, "--only-favorites"),
+		onlyFavorites:  hasFlag(args, "--only-favorites"),
-		media:         flagValWithDefault(args, "--media", "photos"),
+		media:          flagValWithDefault(args, "--media", "photos"),
-		jsonOut:       hasFlag(args, "--json"),
+		jsonOut:        hasFlag(args, "--json"),
-		verify:        hasFlag(args, "--verify"),
+		verify:         hasFlag(args, "--verify"),
-		format:        flagValWithDefault(args, "--format", "jpeg"),
+		format:         flagValWithDefault(args, "--format", "jpeg"),
-		sidecar:       flagValWithDefault(args, "--sidecar", "none"),
+		sidecar:        flagValWithDefault(args, "--sidecar", "none"),
-		dateTemplate:  flagVal(args, "--date-template"),
+		reverseGeocode: hasFlag(args, "--reverse-geocode"),
+		dateTemplate:   flagVal(args, "--date-template"),
 	}
 	if opts.media != "photos" && opts.media != "videos" && opts.media != "all" {
 		fmt.Fprintf(stderr, "error: --media must be photos, videos, or all, got %q\n", opts.media)

cmd/photoscli/main_test.go

@@ -31,6 +31,7 @@ type mockBridge struct {
 	treeErr          error
 	exportPreviewFn  func(string, string, int, int, int) (photos.ExportResult, error)
 	exportOrigFn     func(string, string, int) (photos.ExportResult, error)
+	reverseGeocodeFn func(float64, float64) (photos.Placemark, error)
 	cancelled        atomic.Bool
 }
 
@@ -57,6 +58,12 @@ func (m *mockBridge) ListAssets(albumID string) ([]photos.Asset, int, error) {
 	return m.assets, len(m.assets), nil
 }
 func (m *mockBridge) ListTree() ([]photos.CollectionNode, error) { return m.tree, m.treeErr }
+func (m *mockBridge) ReverseGeocode(lat, lon float64) (photos.Placemark, error) {
+	if m.reverseGeocodeFn != nil {
+		return m.reverseGeocodeFn(lat, lon)
+	}
+	return photos.Placemark{}, nil
+}
 func (m *mockBridge) ExportPreview(assetID, out string, targetSize, quality, index int) (photos.ExportResult, error) {
 	if m.exportPreviewFn != nil {
 		return m.exportPreviewFn(assetID, out, targetSize, quality, index)
@@ -4160,24 +4167,38 @@ func TestXMPSidecarHelpers(t *testing.T) {
 		t.Fatalf("sidecar path = %q", got)
 	}
 	xmp := string(renderXMP(xmpSidecarData{
-		AssetID:          `id&<>"`,
+		AssetID:             `id&<>"`,
-		OriginalFilename: "IMG_0001.HEIC",
+		OriginalFilename:    "IMG_0001.HEIC",
-		ExportedFilename: "IMG_0001.jpg",
+		ExportedFilename:    "IMG_0001.jpg",
-		Album:            "A&B",
+		Album:               "A&B",
-		AlbumPath:        "/tmp/A&B",
+		AlbumPath:           "/tmp/A&B",
-		ManifestPath:     "A&B/IMG_0001.jpg",
+		ManifestPath:        "A&B/IMG_0001.jpg",
-		MediaType:        "image",
+		MediaType:           "image",
-		PixelWidth:       10,
+		MediaSubtypes:       []string{"photoLive", `hdr&<>"`},
-		PixelHeight:      20,
+		SourceType:          "userLibrary",
-		IsFavorite:       true,
+		PlaybackStyle:       "livePhoto",
-		Cloud:            "local",
+		PixelWidth:          10,
-		ExportMode:       "preview",
+		PixelHeight:         20,
-		PhotoscliVersion: "test",
+		Duration:            1.25,
-		ExportedAt:       "2026-01-01T00:00:00Z",
+		IsFavorite:          true,
-		Size:             123,
+		IsHidden:            true,
-		CreateDate:       "2024-01-01T00:00:00Z",
+		HasAdjustments:      true,
+		Cloud:               "local",
+		ExportMode:          "preview",
+		PhotoscliVersion:    "test",
+		ExportedAt:          "2026-01-01T00:00:00Z",
+		Size:                123,
+		CreateDate:          "2024-01-01T00:00:00Z",
+		ModifyDate:          "2024-02-01T00:00:00Z",
+		Location:            &photos.AssetLocation{Latitude: 59.3293, Longitude: 18.0686, Altitude: 10, HorizontalAccuracy: 5},
+		Placemark:           &photos.Placemark{Country: "Sweden", CountryCode: "SE", Locality: "Stockholm", FormattedAddress: "Stockholm, Sweden", AreasOfInterest: []string{"Gamla stan"}},
+		BurstIdentifier:     "burst1",
+		RepresentsBurst:     true,
+		BurstSelectionTypes: []string{"autoPick"},
+		AdjustmentInfo:      &photos.AdjustmentInfo{FormatIdentifier: "com.apple", FormatVersion: "1.0", BaseFilename: "base.heic"},
+		Resources:           []photos.AssetResource{{Type: "photo", Filename: `res&.heic`, UTI: "public.heic", Local: true, Size: 99}},
 	}))
-	for _, want := range []string{"photoscli:assetID=\"id&amp;&lt;&gt;&#34;\"", "photoscli:isFavorite=\"true\"", "xmp:CreateDate=\"2024-01-01T00:00:00Z\""} {
+	for _, want := range []string{"photoscli:assetID=\"id&amp;&lt;&gt;&#34;\"", "photoscli:isFavorite=\"true\"", "photoscli:hasAdjustments=\"true\"", "xmp:ModifyDate=\"2024-02-01T00:00:00Z\"", "photoscli:latitude=\"59.32930000\"", "photoscli:addressCountry=\"Sweden\"", "photoscli:adjustmentFormatIdentifier=\"com.apple\"", "<photoscli:resources><rdf:Seq>", "photoscli:resourceFilename=\"res&amp;.heic\"", "<photoscli:mediaSubtypes><rdf:Seq>"} {
 		if !strings.Contains(xmp, want) {
 			t.Fatalf("XMP missing %q in %s", want, xmp)
 		}
@@ -4235,6 +4256,158 @@ func TestSidecarExportIntegration(t *testing.T) {
 	}
 }
 
+func TestSidecarReverseGeocodeCache(t *testing.T) {
+	dir := t.TempDir()
+	geoCalls := 0
+	b := &mockBridge{assets: []photos.Asset{{ID: "x1", Filename: "geo.jpg", Location: &photos.AssetLocation{Latitude: 59.3293, Longitude: 18.0686}}}}
+	b.reverseGeocodeFn = func(lat, lon float64) (photos.Placemark, error) {
+		geoCalls++
+		return photos.Placemark{Country: "Sweden", Locality: "Stockholm", FormattedAddress: "Stockholm, Sweden"}, nil
+	}
+	b.exportPreviewFn = func(assetID, out string, targetSize, quality, index int) (photos.ExportResult, error) {
+		name := fmt.Sprintf("photo%d.jpg", geoCalls)
+		if err := os.WriteFile(filepath.Join(out, name), []byte("data"), 0644); err != nil {
+			return photos.ExportResult{}, err
+		}
+		return photos.ExportResult{Filename: name, Size: 4, Cloud: "local"}, nil
+	}
+	for i := 0; i < 2; i++ {
+		exported, failed := exportAssets(b.assets, dir, 1024, 85, 1, false, 1, io.Discard, b, "Album", true, manifest.FormatJSONL, false, exportOptions{sidecar: "xmp", reverseGeocode: true})
+		if exported != 1 || failed != 0 {
+			t.Fatalf("run %d exported=%d failed=%d", i, exported, failed)
+		}
+	}
+	if geoCalls != 1 {
+		t.Fatalf("expected cached geocode after first call, got %d", geoCalls)
+	}
+	data, err := os.ReadFile(filepath.Join(dir, "photo1.xmp"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !strings.Contains(string(data), "photoscli:addressCity=\"Stockholm\"") || !strings.Contains(string(data), "photoscli:reverseGeocoder=\"MapKit\"") {
+		t.Fatalf("missing geocode fields: %s", string(data))
+	}
+	if _, err := os.Stat(filepath.Join(dir, ".photoscli", "geocode-cache.jsonl")); err != nil {
+		t.Fatalf("missing geocode cache: %v", err)
+	}
+}
+
+func TestGeocodeCacheBranches(t *testing.T) {
+	dir := t.TempDir()
+	cache := newGeocodeCache(dir)
+	if got := cache.lookup(1, 2, &mockBridge{reverseGeocodeFn: func(float64, float64) (photos.Placemark, error) {
+		return photos.Placemark{}, fmt.Errorf("offline")
+	}}); got != nil {
+		t.Fatalf("expected nil on geocode error, got %+v", got)
+	}
+	if got := (*geocodeCache)(nil).lookup(1, 2, &mockBridge{}); got != nil {
+		t.Fatalf("expected nil cache lookup, got %+v", got)
+	}
+	oldOpen := openFileFunc
+	openFileFunc = func(string, int, os.FileMode) (*os.File, error) { return nil, fmt.Errorf("open") }
+	got := cache.lookup(3, 4, &mockBridge{reverseGeocodeFn: func(float64, float64) (photos.Placemark, error) {
+		return photos.Placemark{Country: "Nowhere"}, nil
+	}})
+	openFileFunc = oldOpen
+	if got == nil || got.Country != "Nowhere" {
+		t.Fatalf("expected placemark despite cache write error, got %+v", got)
+	}
+}
+
+func TestSidecarReverseGeocodeWithoutCache(t *testing.T) {
+	dir := t.TempDir()
+	pa := pendingAsset{asset: photos.Asset{ID: "x1", Filename: "geo.jpg", Location: &photos.AssetLocation{Latitude: 1, Longitude: 2}}, root: dir, path: dir}
+	if err := writeSidecarIfNeeded(pa, photos.ExportResult{Filename: "geo.jpg", Size: 1}, false, exportOptions{sidecar: "xmp", reverseGeocode: true}, nil, &mockBridge{}); err != nil {
+		t.Fatal(err)
+	}
+	data, err := os.ReadFile(filepath.Join(dir, "geo.xmp"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	content := string(data)
+	if !strings.Contains(content, "photoscli:latitude=\"1.00000000\"") || strings.Contains(content, "photoscli:reverseGeocoder") {
+		t.Fatalf("unexpected reverse geocode content: %s", content)
+	}
+}
+
+func TestSidecarModificationDate(t *testing.T) {
+	dir := t.TempDir()
+	modified := "2024-03-04T05:06:07Z"
+	pa := pendingAsset{asset: photos.Asset{ID: "x1", Filename: "mod.jpg", ModificationDate: &modified}, path: dir}
+	if err := writeSidecarIfNeeded(pa, photos.ExportResult{Filename: "mod.jpg", Size: 1}, false, exportOptions{sidecar: "xmp"}, nil, &mockBridge{}); err != nil {
+		t.Fatal(err)
+	}
+	data, err := os.ReadFile(filepath.Join(dir, "mod.xmp"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !strings.Contains(string(data), "xmp:ModifyDate=\"2024-03-04T05:06:07Z\"") {
+		t.Fatalf("missing modify date: %s", string(data))
+	}
+}
+
+func TestExportPendingReverseGeocodeNoPending(t *testing.T) {
+	bar := newProgressBar(io.Discard, 1)
+	done, failed := exportPending(nil, 1024, 85, false, 0, bar, &mockBridge{}, nil, 1, manifest.NoopLogWriter, exportOptions{sidecar: "xmp", reverseGeocode: true})
+	if done != 0 || failed != 0 {
+		t.Fatalf("done=%d failed=%d", done, failed)
+	}
+}
+
+func TestExportPendingGeocodeCacheRootFallback(t *testing.T) {
+	dir := t.TempDir()
+	a := photos.Asset{ID: "g1", Filename: "geo.jpg", Location: &photos.AssetLocation{Latitude: 1, Longitude: 2}}
+	b := &mockBridge{assets: []photos.Asset{a}, reverseGeocodeFn: func(float64, float64) (photos.Placemark, error) {
+		return photos.Placemark{Country: "Sweden"}, nil
+	}}
+	b.exportPreviewFn = func(assetID, out string, targetSize, quality, index int) (photos.ExportResult, error) {
+		if err := os.WriteFile(filepath.Join(out, "geo.jpg"), []byte("data"), 0644); err != nil {
+			return photos.ExportResult{}, err
+		}
+		return photos.ExportResult{Filename: "geo.jpg", Size: 4}, nil
+	}
+	bar := newProgressBar(io.Discard, 1)
+	done, failed := exportPending([]pendingAsset{{asset: a, path: dir}}, 1024, 85, false, 1, bar, b, nil, 1, manifest.NoopLogWriter, exportOptions{sidecar: "xmp", reverseGeocode: true})
+	if done != 1 || failed != 0 {
+		t.Fatalf("done=%d failed=%d", done, failed)
+	}
+	if _, err := os.Stat(filepath.Join(dir, ".photoscli", "geocode-cache.jsonl")); err != nil {
+		t.Fatalf("expected fallback-root cache: %v", err)
+	}
+}
+
+func TestExportPendingCreatesGeocodeCacheForParallel(t *testing.T) {
+	dir := t.TempDir()
+	assets := []photos.Asset{
+		{ID: "g1", Filename: "one.jpg", Location: &photos.AssetLocation{Latitude: 1, Longitude: 2}},
+		{ID: "g2", Filename: "two.jpg", Location: &photos.AssetLocation{Latitude: 3, Longitude: 4}},
+		{ID: "g3", Filename: "three.jpg", Location: &photos.AssetLocation{Latitude: 5, Longitude: 6}},
+		{ID: "g4", Filename: "four.jpg", Location: &photos.AssetLocation{Latitude: 7, Longitude: 8}},
+	}
+	pending := make([]pendingAsset, len(assets))
+	for i, a := range assets {
+		pending[i] = pendingAsset{asset: a, root: dir, path: dir, album: "Geo"}
+	}
+	b := &mockBridge{assets: assets, reverseGeocodeFn: func(float64, float64) (photos.Placemark, error) {
+		return photos.Placemark{Country: "Sweden"}, nil
+	}}
+	b.exportPreviewFn = func(assetID, out string, targetSize, quality, index int) (photos.ExportResult, error) {
+		name := assetID + ".jpg"
+		if err := os.WriteFile(filepath.Join(out, name), []byte("data"), 0644); err != nil {
+			return photos.ExportResult{}, err
+		}
+		return photos.ExportResult{Filename: name, Size: 4}, nil
+	}
+	bar := newProgressBar(io.Discard, 4)
+	done, failed := exportPending(pending, 1024, 85, false, len(pending), bar, b, nil, 4, manifest.NoopLogWriter, exportOptions{sidecar: "xmp", reverseGeocode: true})
+	if done != len(pending) || failed != 0 {
+		t.Fatalf("done=%d failed=%d", done, failed)
+	}
+	if _, err := os.Stat(filepath.Join(dir, ".photoscli", "geocode-cache.jsonl")); err != nil {
+		t.Fatalf("expected geocode cache: %v", err)
+	}
+}
+
 func TestSidecarConfigAndErrors(t *testing.T) {
 	oldConfigValues, oldConfigLoaded := configValues, configLoaded
 	defer func() { configValues, configLoaded = oldConfigValues, oldConfigLoaded }()
@@ -4283,7 +4456,7 @@ func TestSidecarAdditionalBranches(t *testing.T) {
 	writeFileFunc = oldWriteFile
 
 	pa := pendingAsset{asset: photos.Asset{ID: "x1", Filename: "orig.HEIC"}, path: dir, album: "Album"}
-	if err := writeSidecarIfNeeded(pa, photos.ExportResult{Filename: "out.jpg", Size: 1, Cloud: "local"}, true, exportOptions{sidecar: "xmp"}); err != nil {
+	if err := writeSidecarIfNeeded(pa, photos.ExportResult{Filename: "out.jpg", Size: 1, Cloud: "local"}, true, exportOptions{sidecar: "xmp"}, nil, &mockBridge{}); err != nil {
 		t.Fatal(err)
 	}
 	data, err := os.ReadFile(filepath.Join(dir, "out.xmp"))
@@ -4295,7 +4468,7 @@ func TestSidecarAdditionalBranches(t *testing.T) {
 		t.Fatalf("unexpected sidecar: %s", content)
 	}
 	otherRoot := filepath.Join(dir, "other")
-	if err := writeSidecarIfNeeded(pendingAsset{asset: photos.Asset{ID: "x2"}, root: otherRoot, path: dir}, photos.ExportResult{Filename: "fallback.jpg"}, false, exportOptions{sidecar: "xmp"}); err != nil {
+	if err := writeSidecarIfNeeded(pendingAsset{asset: photos.Asset{ID: "x2"}, root: otherRoot, path: dir}, photos.ExportResult{Filename: "fallback.jpg"}, false, exportOptions{sidecar: "xmp"}, nil, &mockBridge{}); err != nil {
 		t.Fatal(err)
 	}
 	data, err = os.ReadFile(filepath.Join(dir, "fallback.xmp"))

internal/photos/bridge.go

@@ -9,6 +9,7 @@ type Bridge interface {
 	RequestAccess() error
 	ListAlbums() ([]Album, error)
 	ListAssets(albumID string) ([]Asset, int, error)
+	ReverseGeocode(latitude, longitude float64) (Placemark, error)
 	ListTree() ([]CollectionNode, error)
 	ExportPreview(assetID, outputDir string, targetSize, quality, index int) (ExportResult, error)
 	ExportOriginal(assetID, outputDir string, index int) (ExportResult, error)
@@ -39,6 +40,17 @@ func ParseAssetsJSON(jsonStr string) ([]Asset, int, error) {
 	return resp.Assets, resp.Total, nil
 }
 
+func ParsePlacemarkJSON(jsonStr string) (Placemark, error) {
+	var resp PlacemarkResponse
+	if err := json.Unmarshal([]byte(jsonStr), &resp); err != nil {
+		return Placemark{}, err
+	}
+	if resp.Error != "" {
+		return Placemark{}, fmt.Errorf("%s", resp.Error)
+	}
+	return resp.Placemark, nil
+}
+
 func ParseTreeJSON(jsonStr string) ([]CollectionNode, error) {
 	var errResp ErrorResponse
 	if err := json.Unmarshal([]byte(jsonStr), &errResp); err == nil && errResp.Error != "" {

internal/photos/cgo_bridge.go

@@ -4,7 +4,7 @@ package photos
 
 /*
 #cgo CFLAGS: -I${SRCDIR}/../../bridge
-#cgo LDFLAGS: -L${SRCDIR}/../../bridge -lphotokit_bridge -framework Photos -framework Foundation -framework AppKit -framework UniformTypeIdentifiers
+#cgo LDFLAGS: -L${SRCDIR}/../../bridge -lphotokit_bridge -framework Photos -framework Foundation -framework AppKit -framework UniformTypeIdentifiers -framework CoreLocation -framework MapKit
 #include "photokit_bridge.h"
 #include <stdlib.h>
 */
@@ -45,6 +45,15 @@ func (*CgoBridge) ListAssets(albumID string) ([]Asset, int, error) {
 	return ParseAssetsJSON(C.GoString(cs))
 }
 
+func (*CgoBridge) ReverseGeocode(latitude, longitude float64) (Placemark, error) {
+	cs := C.photos_reverse_geocode_json(C.double(latitude), C.double(longitude))
+	if cs == nil {
+		return Placemark{}, errBridgeNil
+	}
+	defer C.photos_free_string(cs)
+	return ParsePlacemarkJSON(C.GoString(cs))
+}
+
 func (*CgoBridge) ListTree() ([]CollectionNode, error) {
 	cs := C.photos_list_tree_json()
 	if cs == nil {

internal/photos/cgo_bridge_test_impl.go

@@ -12,6 +12,8 @@ void photos_test_set_access(int rc);
 void photos_test_set_albums(const char *json);
 void photos_test_set_assets(const char *json);
 void photos_test_set_tree(const char *json);
+void photos_test_set_geocode(const char *json);
+void photos_test_set_geocode_null(void);
 void photos_test_set_albums_null(void);
 void photos_test_set_assets_null(void);
 void photos_test_set_tree_null(void);
@@ -35,6 +37,8 @@ func SetTestAccessRC(rc int)                { C.photos_test_set_access(C.int(rc)
 func SetTestAlbumsJSON(json string)         { C.photos_test_set_albums(C.CString(json)) }
 func SetTestAssetsJSON(json string)         { C.photos_test_set_assets(C.CString(json)) }
 func SetTestTreeJSON(json string)           { C.photos_test_set_tree(C.CString(json)) }
+func SetTestGeocodeJSON(json string)        { C.photos_test_set_geocode(C.CString(json)) }
+func SetTestGeocodeNull()                   { C.photos_test_set_geocode_null() }
 func SetTestAlbumsNull()                    { C.photos_test_set_albums_null() }
 func SetTestAssetsNull()                    { C.photos_test_set_assets_null() }
 func SetTestTreeNull()                      { C.photos_test_set_tree_null() }
@@ -73,6 +77,15 @@ func (*CgoBridge) ListAssets(albumID string) ([]Asset, int, error) {
 	return ParseAssetsJSON(C.GoString(cs))
 }
 
+func (*CgoBridge) ReverseGeocode(latitude, longitude float64) (Placemark, error) {
+	cs := C.photos_reverse_geocode_json(C.double(latitude), C.double(longitude))
+	if cs == nil {
+		return Placemark{}, errBridgeNil
+	}
+	defer C.photos_free_string(cs)
+	return ParsePlacemarkJSON(C.GoString(cs))
+}
+
 func (*CgoBridge) ListTree() ([]CollectionNode, error) {
 	cs := C.photos_list_tree_json()
 	if cs == nil {

internal/photos/photos_test.go

@@ -168,6 +168,63 @@ func TestParseAssetsJSON(t *testing.T) {
 	}
 }
 
+func TestParseAssetsJSONExtendedMetadata(t *testing.T) {
+	created := "2024-01-01T00:00:00Z"
+	modified := "2024-01-02T00:00:00Z"
+	assets, total, err := ParseAssetsJSON(`{"assets":[{"id":"x1","filename":"IMG.HEIC","mediaType":"image","mediaSubtypes":["photoLive","photoHDR"],"sourceType":"userLibrary","playbackStyle":"livePhoto","pixelWidth":1,"pixelHeight":2,"creationDate":"2024-01-01T00:00:00Z","modificationDate":"2024-01-02T00:00:00Z","duration":3.5,"isFavorite":true,"isHidden":true,"hasAdjustments":true,"location":{"latitude":59.1,"longitude":18.2,"altitude":10,"horizontalAccuracy":5},"burstIdentifier":"burst","representsBurst":true,"burstSelectionTypes":["autoPick"],"adjustmentInfo":{"formatIdentifier":"fmt","formatVersion":"1","baseFilename":"base.heic"},"resources":[{"type":"adjustmentData","filename":"adj.plist","uti":"public.plist","local":true,"size":42}]}],"total":1}`)
+	if err != nil || total != 1 || len(assets) != 1 {
+		t.Fatalf("ParseAssetsJSON err=%v total=%d len=%d", err, total, len(assets))
+	}
+	a := assets[0]
+	if a.CreationDate == nil || *a.CreationDate != created || a.ModificationDate == nil || *a.ModificationDate != modified {
+		t.Fatalf("unexpected dates: %+v", a)
+	}
+	if a.Location == nil || a.Location.Latitude != 59.1 || a.Location.Longitude != 18.2 || !a.IsHidden || !a.HasAdjustments || !a.RepresentsBurst {
+		t.Fatalf("unexpected extended metadata: %+v", a)
+	}
+	if len(a.MediaSubtypes) != 2 || a.SourceType != "userLibrary" || a.PlaybackStyle != "livePhoto" || len(a.BurstSelectionTypes) != 1 {
+		t.Fatalf("unexpected type metadata: %+v", a)
+	}
+	if a.AdjustmentInfo == nil || a.AdjustmentInfo.FormatIdentifier != "fmt" || a.Resources[0].Size != 42 {
+		t.Fatalf("unexpected adjustment/resource metadata: %+v", a)
+	}
+}
+
+func TestParsePlacemarkJSON(t *testing.T) {
+	p, err := ParsePlacemarkJSON(`{"placemark":{"country":"Sweden","countryCode":"SE","locality":"Stockholm","formattedAddress":"Stockholm, Sweden","areasOfInterest":["Gamla stan"]}}`)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if p.Country != "Sweden" || p.CountryCode != "SE" || p.Locality != "Stockholm" || len(p.AreasOfInterest) != 1 {
+		t.Fatalf("unexpected placemark: %+v", p)
+	}
+	if _, err := ParsePlacemarkJSON(`{"error":"geocode failed"}`); err == nil || err.Error() != "geocode failed" {
+		t.Fatalf("expected geocode error, got %v", err)
+	}
+	if _, err := ParsePlacemarkJSON(`bad`); err == nil {
+		t.Fatal("expected invalid JSON error")
+	}
+}
+
+func TestCgoBridgeReverseGeocode(t *testing.T) {
+	SetTestGeocodeJSON(`{"placemark":{"country":"Sweden","locality":"Stockholm"}}`)
+	p, err := (&CgoBridge{}).ReverseGeocode(59.3293, 18.0686)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if p.Country != "Sweden" || p.Locality != "Stockholm" {
+		t.Fatalf("unexpected placemark: %+v", p)
+	}
+	SetTestGeocodeJSON(`{"error":"no network"}`)
+	if _, err := (&CgoBridge{}).ReverseGeocode(0, 0); err == nil || err.Error() != "no network" {
+		t.Fatalf("expected geocode error, got %v", err)
+	}
+	SetTestGeocodeNull()
+	if _, err := (&CgoBridge{}).ReverseGeocode(0, 0); err != errBridgeNil {
+		t.Fatalf("expected nil bridge error, got %v", err)
+	}
+}
+
 func TestParseTreeJSON(t *testing.T) {
 	tests := []struct {
 		name    string

internal/photos/types.go

@@ -6,17 +6,40 @@ type Album struct {
 }
 
 type Asset struct {
-	ID             string          `json:"id"`
+	ID                  string          `json:"id"`
-	Filename       string          `json:"filename"`
+	Filename            string          `json:"filename"`
-	Cloud          string          `json:"cloud"`
+	Cloud               string          `json:"cloud"`
-	MediaType      string          `json:"mediaType"`
+	MediaType           string          `json:"mediaType"`
-	PixelWidth     int             `json:"pixelWidth"`
+	MediaSubtypes       []string        `json:"mediaSubtypes,omitempty"`
-	PixelHeight    int             `json:"pixelHeight"`
+	SourceType          string          `json:"sourceType,omitempty"`
-	CreationDate   *string         `json:"creationDate,omitempty"`
+	PlaybackStyle       string          `json:"playbackStyle,omitempty"`
-	Duration       float64         `json:"duration,omitempty"`
+	PixelWidth          int             `json:"pixelWidth"`
-	IsFavorite     bool            `json:"isFavorite,omitempty"`
+	PixelHeight         int             `json:"pixelHeight"`
-	HasAdjustments bool            `json:"hasAdjustments,omitempty"`
+	CreationDate        *string         `json:"creationDate,omitempty"`
-	Resources      []AssetResource `json:"resources,omitempty"`
+	ModificationDate    *string         `json:"modificationDate,omitempty"`
+	Duration            float64         `json:"duration,omitempty"`
+	IsFavorite          bool            `json:"isFavorite,omitempty"`
+	IsHidden            bool            `json:"isHidden,omitempty"`
+	HasAdjustments      bool            `json:"hasAdjustments,omitempty"`
+	Location            *AssetLocation  `json:"location,omitempty"`
+	BurstIdentifier     string          `json:"burstIdentifier,omitempty"`
+	RepresentsBurst     bool            `json:"representsBurst,omitempty"`
+	BurstSelectionTypes []string        `json:"burstSelectionTypes,omitempty"`
+	AdjustmentInfo      *AdjustmentInfo `json:"adjustmentInfo,omitempty"`
+	Resources           []AssetResource `json:"resources,omitempty"`
+}
+
+type AssetLocation struct {
+	Latitude           float64 `json:"latitude"`
+	Longitude          float64 `json:"longitude"`
+	Altitude           float64 `json:"altitude,omitempty"`
+	HorizontalAccuracy float64 `json:"horizontalAccuracy,omitempty"`
+}
+
+type AdjustmentInfo struct {
+	FormatIdentifier string `json:"formatIdentifier,omitempty"`
+	FormatVersion    string `json:"formatVersion,omitempty"`
+	BaseFilename     string `json:"baseFilename,omitempty"`
 }
 
 type AssetResource struct {
@@ -24,6 +47,29 @@ type AssetResource struct {
 	Filename string `json:"filename"`
 	UTI      string `json:"uti"`
 	Local    bool   `json:"local"`
+	Size     int64  `json:"size,omitempty"`
+}
+
+type Placemark struct {
+	Name                  string   `json:"name,omitempty"`
+	Country               string   `json:"country,omitempty"`
+	CountryCode           string   `json:"countryCode,omitempty"`
+	AdministrativeArea    string   `json:"administrativeArea,omitempty"`
+	SubAdministrativeArea string   `json:"subAdministrativeArea,omitempty"`
+	Locality              string   `json:"locality,omitempty"`
+	SubLocality           string   `json:"subLocality,omitempty"`
+	Thoroughfare          string   `json:"thoroughfare,omitempty"`
+	SubThoroughfare       string   `json:"subThoroughfare,omitempty"`
+	PostalCode            string   `json:"postalCode,omitempty"`
+	FormattedAddress      string   `json:"formattedAddress,omitempty"`
+	InlandWater           string   `json:"inlandWater,omitempty"`
+	Ocean                 string   `json:"ocean,omitempty"`
+	AreasOfInterest       []string `json:"areasOfInterest,omitempty"`
+}
+
+type PlacemarkResponse struct {
+	Placemark Placemark `json:"placemark"`
+	Error     string    `json:"error,omitempty"`
 }
 
 type ExportResult struct {