diff --git a/.github/check-installable/action.yml b/.github/check-installable/action.yml
new file mode 100644
index 000000000000..3401aa241597
--- /dev/null
+++ b/.github/check-installable/action.yml
@@ -0,0 +1,35 @@
+name: Check if package is installable
+inputs:
+  opam:
+    required: true
+  package:
+    reauired: true
+outputs:
+  installable:
+    description: "Is the package installable?"
+    value: ${{ steps.installable.outputs.installable }}
+runs:
+  using: composite
+  steps:
+    - name: Get opam cli option
+      id: cli
+      shell: sh
+      run: |
+        if [ "${{ inputs.opam }}" = "opam-2.1" ]; then
+          echo '##[set-output name=cli]--cli=2.1'
+        fi
+    - name: Check if package is installable
+      id: installable
+      shell: sh
+      run: |
+        if opam ${{ steps.cli.outputs.cli }} list --readonly --external --resolve=${{ inputs.package }} >/dev/null 2>&1; then
+          echo '##[set-output name=installable]true';
+        else
+          echo "Package is not installable";
+        fi
+    - name: Annotate result
+      if: ${{ !steps.installable.outputs.installable }}
+      uses: actions/github-script@v5
+      with:
+        script: |
+          core.notice('${{ inputs.package }} is not installable');
diff --git a/.github/install-ocaml/action.yml b/.github/install-ocaml/action.yml
new file mode 100644
index 000000000000..dc5d7ac0b88f
--- /dev/null
+++ b/.github/install-ocaml/action.yml
@@ -0,0 +1,14 @@
+name: Install OCaml
+inputs:
+  compiler:
+    reauired: true
+runs:
+  using: composite
+  steps:
+    - name: Setup OCaml
+      uses: ocaml/setup-ocaml@v2
+      with:
+        ocaml-compiler: ${{ inputs.compiler }}
+        opam-disable-sandboxing: true
+        opam-repositories: |
+          default: file://.
diff --git a/.github/install-package/action.yml b/.github/install-package/action.yml
new file mode 100644
index 000000000000..6ec8a51e9ad0
--- /dev/null
+++ b/.github/install-package/action.yml
@@ -0,0 +1,30 @@
+name: Install Package
+inputs:
+  opam:
+    required: true
+  package:
+    reauired: true
+  env:
+    default: '{}'
+runs:
+  using: composite
+  steps:
+    - name: Get opam cli option
+      id: cli
+      shell: sh
+      run: |
+        if [ "${{ inputs.opam }}" = "opam-2.1" ]; then
+          echo '##[set-output name=cli]--cli=2.1 --confirm-level=unsafe-yes'
+        fi
+    - name: Install ${{ inputs.package }} depopts
+      if: inputs.opam == 'opam-2.0'
+      shell: sh
+      run: |
+        opam depext ${{ inputs.package }}
+    - name: Install ${{ inputs.package }}
+      shell: sh
+      env: ${{ fromJson(inputs.env) }}
+      run: |
+        opam install --deps-only ${{ steps.cli.outputs.cli }} ${{ inputs.package }}
+        opam install ${{ steps.cli.outputs.cli }} ${{ inputs.package }}
+        opam remove ${{ steps.cli.outputs.cli }} ${{ inputs.package }}
diff --git a/.github/install-system-packages/action.yml b/.github/install-system-packages/action.yml
new file mode 100644
index 000000000000..890acbfe57a9
--- /dev/null
+++ b/.github/install-system-packages/action.yml
@@ -0,0 +1,35 @@
+name: Install System Packages
+inputs:
+  distribution:
+    reauired: true
+runs:
+  using: composite
+  steps:
+    - name: Install debian system packages
+      if: startsWith(inputs.distribution, 'debian') || startsWith(inputs.distribution, 'ubuntu')
+      shell: sh
+      env:
+        DEBIAN_FRONTEND: noninteractive
+      run: |
+        apt-get update
+        apt-get install -qq -yy curl darcs gcc git m4 make mercurial patch rsync sudo unzip bzip2
+    - name: Install alpine system packages
+      if: startsWith(inputs.distribution, 'alpine')
+      shell: sh
+      run: |
+        apk add build-base coreutils curl libgcc libstdc++ musl patch unzip bzip2 mercurial git rsync tar
+    - name: Install yum-based system packages
+      if: startsWith(inputs.distribution, 'centos') || startsWith(inputs.distribution, 'fedora') || startsWith(inputs.distribution, 'oraclelinux')
+      shell: sh
+      run: |
+        yum install -y curl diffutils gcc gcc-c++ tar git m4 make mercurial patch rsync sudo unzip gzip bzip2
+    - name: Install opensuse system packages
+      if: startsWith(inputs.distribution, 'opensuse')
+      shell: sh
+      run: |
+        zypper install -y curl diffutils gcc gcc-c++ tar git m4 make mercurial patch rsync sudo unzip gzip bzip2 which
+    - name: Install archlinux system packages
+      if: startsWith(inputs.distribution, 'archlinux')
+      shell: sh
+      run: |
+        pacman -Sy --noconfirm base-devel unzip git rsync
diff --git a/.github/package-revdeps/action.yml b/.github/package-revdeps/action.yml
new file mode 100644
index 000000000000..ba6e9f0a9a8c
--- /dev/null
+++ b/.github/package-revdeps/action.yml
@@ -0,0 +1,26 @@
+name: Get package revdeps
+inputs:
+  package:
+    reauired: true
+  cache_key:
+    required: true
+runs:
+  using: composite
+  steps:
+    - name: Store package revdeps
+      uses: actions/cache@v2
+      id: cache_revdeps
+      with:
+        path: ${{ inputs.package }}.revdeps
+        key: ${{ inputs.cache_key }}-${{ inputs.package }}
+
+    - name: Get package revdeps
+      id: revdeps
+      shell: sh
+      if: ${{ !steps.cache_revdeps.outputs.cache-hit }}
+      env:
+        OCAMLCLI: ''
+      run: |
+        REVDEPS=`(opam list -s --color=never --depends-on ${{ inputs.package }} --coinstallable-with ${{ inputs.package }} --installable --all-versions --recursive --depopts && opam list -s --color=never --depends-on ${{ inputs.package }} --coinstallable-with ${{ inputs.package }} --installable --all-versions --with-test --depopts) | sort -u | grep -v ${{ inputs.package }} | while read i; do echo "\"$i\""; done | paste -sd ',' -`
+        echo "${{ inputs.package }} revdeps: [$REVDEPS]"
+        echo "[$REVDEPS]" > ${{ inputs.package }}.revdeps
diff --git a/.github/revdeps-config/action.yml b/.github/revdeps-config/action.yml
new file mode 100644
index 000000000000..ba03f101d022
--- /dev/null
+++ b/.github/revdeps-config/action.yml
@@ -0,0 +1,38 @@
+name: Get revdeps configl
+inputs:
+  packages:
+    reauired: true
+  cache_key:
+    required: true
+outputs:
+  revdeps_config:
+    description: "Revdeps config"
+    value: ${{ steps.revdeps_config.outputs.result }}
+runs:
+  using: composite
+  steps:
+    - name: Setup node
+      uses: actions/setup-node@v2
+      with:
+        node-version: 14
+    - name: Install @action/cache
+      shell: sh
+      run: npm install @actions/cache
+    - name: Collect revdeps
+      id: revdeps_config
+      uses: actions/github-script@v5
+      with:
+        script: |
+          const cache = require('@actions/cache');
+          const fs = require('fs');
+
+          let config = [];
+          const packages = JSON.parse('${{ inputs.packages }}');
+          await Promise.all(packages.map(async (package) => {
+            await cache.restoreCache([`${package}.revdeps`], `${{ inputs.cache_key }}-${package}`);
+            const revdeps = JSON.parse(fs.readFileSync(`${package}.revdeps`));
+            revdeps.forEach((revdep) => config.push({package, revdep}));
+          }));
+
+          console.log(`Revdeps config: ${JSON.stringify(config, null, 2)}`);
+          return config;
diff --git a/.github/scripts/packages.sh b/.github/scripts/packages.sh
new file mode 100755
index 000000000000..870e192ee831
--- /dev/null
+++ b/.github/scripts/packages.sh
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+set -e
+
+PACKAGES=`git diff --name-only origin/master..HEAD | grep '^packages' | cut -d'/' -f 3 | while read i; do echo "\"$i\""; done`
+
+echo "Packages to test: [$PACKAGES]"
+echo "##[set-output name=packages][${PACKAGES}]"
+
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 000000000000..1f57d5adf621
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,250 @@
+name: CI
+on:
+  pull_request:
+
+jobs:
+  cancel_previous_run:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Cancel Previous Runs
+        uses: styfle/cancel-workflow-action@0.8.0
+        with:
+          access_token: ${{ github.token }}
+
+  config:
+    runs-on: ubuntu-latest
+    outputs:
+      default_compiler: '4.13.1'
+      default_opam: 'opam-2.1'
+      compilers: |
+        ["4.02","4.03","4.04","4.05","4.06","4.07",
+         "4.08","4.09","4.10","4.11","4.12","4.13"]
+      distributions: |
+        ["alpine:3.13","alpine:3.14",
+         "archlinux",
+         "centos:7","centos:8",
+         "debian:testing","debian:unstable",
+         "fedora:34",
+         "oraclelinux:7","oraclelinux:8",
+         "ubuntu:18.04","ubuntu:20.04","ubuntu:21.04"]
+      extras: |
+        ["afl", "flambda", "flambda+fp", "fp", "nnp",
+         "nnpchecker", "no-flat-float-array"] 
+      opam_versions: |
+        ["opam-2.0", "opam-2.1"]
+      packages: ${{ steps.packages.outputs.packages }}
+      cache_key: v1-opam-${{ github.run_id }}
+    steps:
+      - name: Checkout latest code
+        uses: actions/checkout@v1
+      - name: List packages to be tested
+        id: packages
+        run: |
+          ./.github/scripts/packages.sh
+
+  compilers:
+    runs-on: ubuntu-latest
+    needs: config
+    strategy:
+      fail-fast: false
+      matrix:
+        opam:  ${{ fromJson(needs.config.outputs.opam_versions) }}
+        compiler: ${{ fromJson(needs.config.outputs.compilers) }}
+        package: ${{ fromJson(needs.config.outputs.packages) }}
+    steps:
+      - name: Checkout latest code
+        uses: actions/checkout@v1
+      - name: Install OCaml
+        uses: ./.github/install-ocaml
+        with:
+          compiler: ${{ matrix.compiler }}
+      - name: Check if ${{ matrix.package }} is installable
+        id: installable
+        uses: ./.github/check-installable
+        with:
+          opam: ${{ matrix.opam }}
+          package: ${{ matrix.package }}
+      - name: Install ${{ matrix.package }}
+        if: steps.installable.outputs.installable
+        uses: ./.github/install-package
+        with:
+          opam: ${{ matrix.opam }}
+          package: ${{ matrix.package }}
+      - name: Install ${{ matrix.package }} with tests
+        if: steps.installable.outputs.installable
+        uses: ./.github/install-package
+        with:
+          opam: ${{ matrix.opam }}
+          package: ${{ matrix.package }}
+          env: |
+            {"OPAMWITHTEST": "1"}
+      - name: Get ${{ matrix.package }} revdeps
+        id: revdeps
+        if: startsWith(needs.config.outputs.default_compiler, matrix.compiler) && matrix.opam == needs.config.outputs.default_opam
+        uses: ./.github/package-revdeps
+        with:
+          package: ${{ matrix.package }}
+          cache_key: ${{ needs.config.outputs.cache_key }}
+
+  revdeps_config:
+    runs-on: ubuntu-latest
+    needs: [config, compilers]
+    outputs:
+      revdeps_config: ${{ steps.revdeps_config.outputs.revdeps_config }}
+    steps:
+      - name: Checkout latest code
+        uses: actions/checkout@v1
+      - name: Export revdeps config
+        id: revdeps_config
+        uses: ./.github/revdeps-config
+        with:
+          packages: ${{ needs.config.outputs.packages }}
+          cache_key: ${{ needs.config.outputs.cache_key }}
+
+  revdeps:
+    runs-on: ubuntu-latest
+    needs: [config, revdeps_config]
+    strategy:
+      fail-fast: false
+      matrix:
+        include: ${{ fromJson(needs.revdeps_config.outputs.revdeps_config) }}
+    steps:
+      - name: Checkout latest code
+        uses: actions/checkout@v1
+      - name: Install OCaml
+        uses: ./.github/install-ocaml
+        with:
+          compiler: ${{ needs.config.outputs.default_compiler }}
+      - name: Check if ${{ matrix.revdep }} is installable
+        id: installable
+        uses: ./.github/check-installable
+        with:
+          opam: ${{ needs.config.outputs.default_opam }}
+          package: ${{ matrix.revdep }}
+      - name: Install ${{ matrix.revdep }}
+        if: steps.installable.outputs.installable
+        uses: ./.github/install-package
+        with:
+          opam: ${{ needs.config.outputs.default_opam }}
+          package: ${{ matrix.revdep }}
+
+  distributions:
+    runs-on: ubuntu-latest
+    needs: config
+    container:
+      image: ${{ matrix.distribution }}
+    strategy:
+      fail-fast: false
+      matrix:
+        opam:  ${{ fromJson(needs.config.outputs.opam_versions) }}
+        distribution: ${{ fromJson(needs.config.outputs.distributions) }}
+        package: ${{ fromJson(needs.config.outputs.packages) }}
+    steps:
+      - name: Checkout latest code
+        uses: actions/checkout@v1
+      - name: Install system packages
+        uses: ./.github/install-system-packages
+        with:
+          distribution: ${{ matrix.distribution }}
+      - name: Install OCaml
+        uses: ./.github/install-ocaml
+        with:
+          compiler: ${{ matrix.compiler }}
+      - name: Check if ${{ matrix.package }} is installable
+        id: installable
+        uses: ./.github/check-installable
+        with:
+          opam: ${{ matrix.opam }}
+          package: ${{ matrix.package }}
+      - name: Install ${{ matrix.package }}
+        if: steps.installable.outputs.installable
+        uses: ./.github/install-package
+        with:
+          opam: ${{ matrix.opam }}
+          package: ${{ matrix.package }}
+      - name: Install ${{ matrix.package }} with tests
+        if: steps.installable.outputs.installable
+        uses: ./.github/install-package
+        with:
+          opam: ${{ matrix.opam }}
+          package: ${{ matrix.package }}
+          env: |
+            {"OPAMWITHTEST": "1"}
+
+  macos:
+    runs-on: macos-latest
+    needs: config
+    strategy:
+      fail-fast: false
+      matrix:
+        opam:  ${{ fromJson(needs.config.outputs.opam_versions) }}
+        package: ${{ fromJson(needs.config.outputs.packages) }}
+    steps:
+      - name: Checkout latest code
+        uses: actions/checkout@v1
+      - name: Install OCaml
+        uses: ./.github/install-ocaml
+        with:
+          compiler: ${{ matrix.compiler }}
+      - name: Check if ${{ matrix.package }} is installable
+        id: installable
+        uses: ./.github/check-installable
+        with:
+          opam: ${{ matrix.opam }}
+          package: ${{ matrix.package }}
+      - name: Install ${{ matrix.package }}
+        if: steps.installable.outputs.installable
+        uses: ./.github/install-package
+        with:
+          opam: ${{ matrix.opam }}
+          package: ${{ matrix.package }}
+      - name: Install ${{ matrix.package }} with tests
+        if: steps.installable.outputs.installable
+        uses: ./.github/install-package
+        with:
+          opam: ${{ matrix.opam }}
+          package: ${{ matrix.package }}
+          env: |
+            {"OPAMWITHTEST": "1"}
+
+  extras:
+    runs-on: ubuntu-latest
+    needs: config
+    strategy:
+      fail-fast: false
+      matrix:
+        extra: ${{ fromJson(needs.config.outputs.extras) }}
+        package: ${{ fromJson(needs.config.outputs.packages) }}
+    steps:
+      - name: Checkout latest code
+        uses: actions/checkout@v1
+      - name: Compute OCaml options
+        id: ocaml_options
+        run: |
+          OCAML_OPTIONS=`echo "${{ matrix.extra }}" | tr '+' '\n' | while read i; do echo "ocaml-option-$i"; done | paste -sd ',' -`
+          echo "OCaml options: $OCAML_OPTIONS"
+          echo "##[set-output name=ocaml_options]$OCAML_OPTIONS" 
+      - name: Install OCaml
+        uses: ./.github/install-ocaml
+        with:
+          compiler: 'ocaml-variants.${{ needs.config.outputs.default_compiler }}+options,${{ steps.ocaml_options.outputs.ocaml_options }}'
+      - name: Check if ${{ matrix.package }} is installable
+        id: installable
+        uses: ./.github/check-installable
+        with:
+          opam: ${{ needs.config.outputs.default_opam }}
+          package: ${{ matrix.package }}
+      - name: Install ${{ matrix.package }}
+        if: steps.installable.outputs.installable
+        uses: ./.github/install-package
+        with:
+          opam: ${{ needs.config.outputs.default_opam }}
+          package: ${{ matrix.package }}
+      - name: Install ${{ matrix.package }} with tests
+        if: steps.installable.outputs.installable
+        uses: ./.github/install-package
+        with:
+          opam: ${{ needs.config.outputs.default_opam }}
+          package: ${{ matrix.package }}
+          env: |
+            {"OPAMWITHTEST": "1"}
diff --git a/packages/liquidsoap/liquidsoap.2.0.1/opam b/packages/liquidsoap/liquidsoap.2.0.1/opam
index cce941ba9cab..b77b4a6b4862 100644
--- a/packages/liquidsoap/liquidsoap.2.0.1/opam
+++ b/packages/liquidsoap/liquidsoap.2.0.1/opam
@@ -9,9 +9,9 @@ use, in the Unix tradition of simple strong components working
 together."""
 maintainer: "romain.beauxis@gmail.com"
 authors: "The Savonet Team <savonet-users@lists.sourceforge.net>"
+bug-reports: "https://github.com/savonet/liquidsoap/issues"
 license: "GPL-2.0-or-later"
 homepage: "https://github.com/savonet/liquidsoap"
-bug-reports: "https://github.com/savonet/liquidsoap/issues"
 depends: [
   "conf-autoconf" {dev}
   "conf-automake" {dev}
@@ -187,4 +187,4 @@ url {
     "md5=6ab15ee3d4d967db1f67e4f4b2586faf"
     "sha512=aeccaf12aa5e818fecc967aa3c70b9a47de1c070251b6d7a0ab2df149951094eb882a56642211b53355294b196ee0603b97c2c98faa210a9042b4cf0293768b9"
   ]
-}
\ No newline at end of file
+}