fix build

.github/workflows/tag.yaml

@@ -21,7 +21,7 @@ jobs:
         run: npm i && npm run build
         working-directory: frontend
       - name: Install OS Requirements
-        run: sudo apt update && sudo apt install -y upx build-essential musl-tools
+        run: sudo apt update && sudo apt install -y upx build-essential musl-tools libde265-dev libheif-dev
       - uses: goto-bus-stop/setup-zig@v2
       - name: Run GoReleaser
         uses: goreleaser/goreleaser-action@v6

CONTRIBUTING.md

@@ -8,15 +8,19 @@ Thank you for your interest in contributing to FileBrowser Quantum! This guide w
 - **Node.js 18.0.0+** with npm 7.0.0+ (see `frontend/package.json`)
 - **Docker** (optional, for containerized development)
 - **Git**
+- **libde265**: Required for HEIF/HEIC preview generation
+  - Ubuntu/Debian: `sudo apt-get install libde265-dev libheif-dev`
+  - macOS: `brew install libde265 libheif`
+  - Windows: Download from [github.com/strukturag/libde265](https://github.com/strukturag/libde265) or use `vcpkg install libheif`
 
-### Required Tools
+### Optional Tools
 
-- **ffmpeg**: Required for video thumbnail generation
+- **ffmpeg**: For media features (subtitles, thumbnails)
   - Ubuntu/Debian: `sudo apt-get install ffmpeg`
   - macOS: `brew install ffmpeg`
   - Windows: Download from [ffmpeg.org](https://ffmpeg.org/download.html)
 
-- **mupdf-tools**: Required for PDF preview generation
+- **mupdf-tools**: For PDF preview generation
   - Ubuntu/Debian: `sudo apt-get install mupdf-tools`
   - macOS: `brew install mupdf-tools`
   - Windows: Download from [mupdf.com](https://mupdf.com/downloads/)

_docker/Dockerfile

@@ -4,7 +4,7 @@ ARG VERSION
 ARG REVISION
 WORKDIR /app
 COPY ./backend ./
-RUN apk update && apk add --no-cache gcc musl-dev upx
+RUN apk update && apk add --no-cache gcc musl-dev upx libde265-dev g++
 ENV CGO_ENABLED=1
 ENV GOEXPERIMENT=greenteagc
 RUN go build -tags mupdf,musl -ldflags="-w -s \

_docker/Dockerfile.slim

@@ -3,7 +3,7 @@ ARG VERSION
 ARG REVISION
 WORKDIR /app
 COPY ./backend ./
-RUN apk update && apk add upx
+RUN apk update && apk add upx libde265-dev g++
 ENV GOEXPERIMENT=greenteagc
 RUN go build -ldflags="-w -s \
   -X 'github.com/gtsteffaniak/filebrowser/backend/common/version.Version=${VERSION}' \