Add mergedrop: drag-and-drop video merger (ffmpeg + FastAPI + React)

apps/mergedrop/config.json

@@ -0,0 +1,43 @@
+{
+  "name": "MergeDrop",
+  "id": "mergedrop",
+  "available": true,
+  "short_desc": "Drag-and-drop video merger — drop clips, reorder, build one MP4.",
+  "author": "alexz",
+  "port": 8765,
+  "categories": ["media", "utilities"],
+  "description": "Self-hosted, drag-and-drop video merger. Upload multiple clips, reorder them, and produce a single normalized MP4 (h.264 + AAC) via ffmpeg. Handles mixed codecs, resolutions and framerates. Live progress streaming, in-browser preview, and downloadable result. No accounts, no telemetry, single container.",
+  "tipi_version": 1,
+  "version": "1.0.0",
+  "source": "https://git.alexzaw.dev/alexz/video-merger",
+  "website": "https://git.alexzaw.dev/alexz/video-merger",
+  "exposable": true,
+  "dynamic_config": true,
+  "no_gui": false,
+  "form_fields": [
+    {
+      "type": "text",
+      "label": "Max files per merge",
+      "default": "20",
+      "required": false,
+      "env_variable": "MERGEDROP_MAX_FILES"
+    },
+    {
+      "type": "text",
+      "label": "Max per-file size (bytes)",
+      "default": "2147483648",
+      "required": false,
+      "env_variable": "MERGEDROP_MAX_FILE_SIZE",
+      "hint": "Default is 2 GiB (2147483648). Raise for larger source clips."
+    },
+    {
+      "type": "text",
+      "label": "Output retention (hours)",
+      "default": "24",
+      "required": false,
+      "env_variable": "MERGEDROP_OUTPUT_MAX_AGE_HOURS",
+      "hint": "How long merged MP4s stay on disk before the janitor deletes them."
+    }
+  ],
+  "supported_architectures": ["amd64"]
+}