Add GHA and readme

.dockerignore

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+/.git
+
+# .gitignore
+/.meltano/
+/output/
+/logs/
+/.env
+/.python-version

.github/workflows/main.yml

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+name: Build, Test, Push
+
+on:
+  push:
+  schedule:
+    - cron: "0 0 * * 0"
+
+permissions:
+  contents: read
+  packages: write
+
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
+jobs:
+  build-test-push:
+    runs-on: ubuntu-latest
+
+    steps:
+      ### Build
+      - name: Build / Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Build / Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Build / Extract Docker metadata (tags, labels)
+        id: meta
+        uses: docker/metadata-action@v4.6.0
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+
+      - name: Build / Build Docker image
+        uses: docker/build-push-action@v4.1.1
+        with:
+          context: .
+          load: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+      ### Test
+      - name: Test / Render app to image
+        env:
+          PLEX_URL: ${{secrets.PLEX_URL}}
+          PLEX_TOKEN: ${{secrets.PLEX_TOKEN}}
+        run: |
+          docker run -v "$(pwd)/output:/project/output" -e TAP_PIXLET_MAGNIFICATION=8 -e PLEX_URL=$PLEX_URL -e PLEX_TOKEN=$PLEX_TOKEN ${{ steps.meta.outputs.tags }}
+          sudo mv output/**/*.webp output/image.webp
+
+      - name: Test / Store image
+        uses: actions/upload-artifact@v3
+        with:
+          name: image
+          path: output/image.webp
+
+      ### Push
+      - name: Push / Log in to the Container registry
+        uses: docker/login-action@v2.2.0
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Push / Push Docker image
+        uses: docker/build-push-action@v4.1.1
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max

.gitignore

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+/.meltano
+/output/
+/logs/
+/.env
+/.python-version

Dockerfile

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+ARG PIXBYT_IMAGE=ghcr.io/douwem/pixbyt:main
+FROM $PIXBYT_IMAGE as base
+
+ENV APP_NAME=plex
+
+WORKDIR /project
+
+# Copy app files
+COPY ./ ./apps/${APP_NAME}
+
+# Install apt packages for apps
+RUN cat ./apps/**/apt-packages.txt | sort | uniq > ./apps/apt-packages.txt
+RUN xargs -a apps/apt-packages.txt apt-get install -y
+
+# Install Meltano plugins for apps
+RUN meltano --log-level=debug install extractors tap-pixlet--${APP_NAME}
+
+ENTRYPOINT []
+CMD meltano run ${APP_NAME}--webp

README.md

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+# Tidbyt + Plex
+
+[Tidbyt](https://tidbyt.com/) app that shows what's currently playing on your [Plex](https://plex.tv) media server.
+
+![Screenshot](screenshot.webp)
+
+## Installation
+
+This app is not available through Tidbyt's mobile app as it uses features that (for security reasons) are not supported in [community apps](https://tidbyt.dev/docs/publish/community-apps) that run on Tidbyt's official app server.
+
+Instead, it needs to be run using [Pixbyt](https://pixbyt.dev), a self-hosted Tidbyt app server for advanced apps.
+
+### 1. Set up Pixbyt
+
+1. [Create your own Pixbyt repo](https://github.com/DouweM/pixbyt#1-create-your-own-pixbyt-repo)
+2. [Configure your Tidbyt](https://github.com/DouweM/pixbyt#2-configure-your-tidbyt)
+
+### 2. Install the app
+
+1. Add this repo as a submodule under `apps`:
+
+    ```bash
+    git submodule add https://github.com/DouweM/tidbyt-plex.git apps/plex
+    ```
+
+1. Add an update schedule to `apps.yml` under `schedules:`:
+
+    ```yaml
+    schedules:
+    # ...
+    - name: plex
+      interval: '* * * * *' # Every minute
+      job: plex
+    ```
+
+## Configuration
+
+Update `.env` with your configuration:
+
+```bash
+PLEX_URL="<url>" # Plex Server URL. If HTTPS, certificate must be valid. Example: 'http://my-nas:32400'
+PLEX_TOKEN="<token>" # Plex API Token. See https://support.plex.tv/ articles/204059436-finding-an-authentication-token-x-plex-token/
+PLEX_USER_NAME="<user name>" # Filter: User Name. Leave blank to consider  sessions from all users
+PLEX_DEVICE_TYPE="<device type>" # Filter: Device Type. Leave blank to  consider sessions from all types of devices. Example: 'Apple TV'
+```
+
+## Usage
+
+Build and launch your Pixbyt app server:
+
+1. [Build the app server](https://github.com/DouweM/pixbyt#4-build-the-app-server)
+1. [Launch the app server](https://github.com/DouweM/pixbyt#5-launch-the-app-server)