diff --git a/.github/workflows/haskell-ci.yml b/.github/workflows/haskell-ci.yml
index 3681fb17..5ade823d 100644
--- a/.github/workflows/haskell-ci.yml
+++ b/.github/workflows/haskell-ci.yml
@@ -1,242 +1,50 @@
-# This GitHub workflow config has been generated by a script via
-#
-#   haskell-ci 'github' 'cabal.project'
-#
-# To regenerate the script (for example after adjusting tested-with) run
-#
-#   haskell-ci regenerate
-#
-# For more information, see https://github.com/haskell-CI/haskell-ci
-#
-# version: 0.16
-#
-# REGENDATA ("0.16",["github","cabal.project"])
-#
-name: Haskell-CI
+name: CI
+
 on:
-  - push
-  - pull_request
+  pull_request:
+  push:
+    branches: [master]
+
+defaults:
+  run:
+    shell: bash
+
 jobs:
-  linux:
-    name: Haskell-CI - Linux - ${{ matrix.compiler }}
-    runs-on: ubuntu-20.04
-    timeout-minutes:
-      60
-    container:
-      image: buildpack-deps:bionic
-    continue-on-error: ${{ matrix.allow-failure }}
+  cabal:
+    name: ${{ matrix.os }} / ghc ${{ matrix.ghc }}
+    runs-on: ${{ matrix.os }}
     strategy:
       matrix:
         include:
-          - compiler: ghc-9.0.1
-            compilerKind: ghc
-            compilerVersion: 9.0.1
-            setup-method: hvr-ppa
-            allow-failure: false
-          - compiler: ghc-8.10.4
-            compilerKind: ghc
-            compilerVersion: 8.10.4
-            setup-method: hvr-ppa
-            allow-failure: false
-          - compiler: ghc-8.8.4
-            compilerKind: ghc
-            compilerVersion: 8.8.4
-            setup-method: hvr-ppa
-            allow-failure: false
-          - compiler: ghc-8.6.5
-            compilerKind: ghc
-            compilerVersion: 8.6.5
-            setup-method: hvr-ppa
-            allow-failure: false
-          - compiler: ghc-8.4.4
-            compilerKind: ghc
-            compilerVersion: 8.4.4
-            setup-method: hvr-ppa
-            allow-failure: false
-          - compiler: ghc-8.2.2
-            compilerKind: ghc
-            compilerVersion: 8.2.2
-            setup-method: hvr-ppa
-            allow-failure: false
-          - compiler: ghc-8.0.2
-            compilerKind: ghc
-            compilerVersion: 8.0.2
-            setup-method: hvr-ppa
-            allow-failure: false
-          - compiler: ghc-7.10.3
-            compilerKind: ghc
-            compilerVersion: 7.10.3
-            setup-method: hvr-ppa
-            allow-failure: false
-          - compiler: ghc-7.8.4
-            compilerKind: ghc
-            compilerVersion: 7.8.4
-            setup-method: hvr-ppa
-            allow-failure: false
-          - compiler: ghc-7.6.3
-            compilerKind: ghc
-            compilerVersion: 7.6.3
-            setup-method: hvr-ppa
-            allow-failure: false
+          - { cabal: "3.10", os: ubuntu-latest,  ghc: "8.10.7" }
+          - { cabal: "3.10", os: ubuntu-latest,  ghc: "9.0.2"  }
+          - { cabal: "3.10", os: ubuntu-latest,  ghc: "9.2.8"  }
+          - { cabal: "3.10", os: ubuntu-latest,  ghc: "9.4.6", allow-failure: true }
+          - { cabal: "3.10", os: ubuntu-latest,  ghc: "9.6.2", allow-failure: true }
       fail-fast: false
-    steps:
-      - name: apt
-        run: |
-          apt-get update
-          apt-get install -y --no-install-recommends gnupg ca-certificates dirmngr curl git software-properties-common libtinfo5
-          apt-add-repository -y 'ppa:hvr/ghc'
-          apt-get update
-          apt-get install -y "$HCNAME"
-          mkdir -p "$HOME/.ghcup/bin"
-          curl -sL https://downloads.haskell.org/ghcup/0.1.19.2/x86_64-linux-ghcup-0.1.19.2 > "$HOME/.ghcup/bin/ghcup"
-          chmod a+x "$HOME/.ghcup/bin/ghcup"
-          "$HOME/.ghcup/bin/ghcup" install cabal 3.10.1.0 || (cat "$HOME"/.ghcup/logs/*.* && false)
-        env:
-          HCKIND: ${{ matrix.compilerKind }}
-          HCNAME: ${{ matrix.compiler }}
-          HCVER: ${{ matrix.compilerVersion }}
-      - name: Set PATH and environment variables
-        run: |
-          echo "$HOME/.cabal/bin" >> $GITHUB_PATH
-          echo "LANG=C.UTF-8" >> "$GITHUB_ENV"
-          echo "CABAL_DIR=$HOME/.cabal" >> "$GITHUB_ENV"
-          echo "CABAL_CONFIG=$HOME/.cabal/config" >> "$GITHUB_ENV"
-          HCDIR=/opt/$HCKIND/$HCVER
-          HC=$HCDIR/bin/$HCKIND
-          echo "HC=$HC" >> "$GITHUB_ENV"
-          echo "HCPKG=$HCDIR/bin/$HCKIND-pkg" >> "$GITHUB_ENV"
-          echo "HADDOCK=$HCDIR/bin/haddock" >> "$GITHUB_ENV"
-          echo "CABAL=$HOME/.ghcup/bin/cabal-3.10.1.0 -vnormal+nowrap" >> "$GITHUB_ENV"
-          HCNUMVER=$(${HC} --numeric-version|perl -ne '/^(\d+)\.(\d+)\.(\d+)(\.(\d+))?$/; print(10000 * $1 + 100 * $2 + ($3 == 0 ? $5 != 1 : $3))')
-          echo "HCNUMVER=$HCNUMVER" >> "$GITHUB_ENV"
-          echo "ARG_TESTS=--enable-tests" >> "$GITHUB_ENV"
-          if [ $((HCNUMVER >= 80200)) -ne 0 ] ; then echo "ARG_BENCH=--enable-benchmarks" >> "$GITHUB_ENV" ; else echo "ARG_BENCH=--disable-benchmarks" >> "$GITHUB_ENV" ; fi
-          echo "HEADHACKAGE=false" >> "$GITHUB_ENV"
-          echo "ARG_COMPILER=--$HCKIND --with-compiler=$HC" >> "$GITHUB_ENV"
-          echo "GHCJSARITH=0" >> "$GITHUB_ENV"
-        env:
-          HCKIND: ${{ matrix.compilerKind }}
-          HCNAME: ${{ matrix.compiler }}
-          HCVER: ${{ matrix.compilerVersion }}
-      - name: env
-        run: |
-          env
-      - name: write cabal config
-        run: |
-          mkdir -p $CABAL_DIR
-          cat >> $CABAL_CONFIG <<EOF
-          remote-build-reporting: anonymous
-          write-ghc-environment-files: never
-          remote-repo-cache: $CABAL_DIR/packages
-          logs-dir:          $CABAL_DIR/logs
-          world-file:        $CABAL_DIR/world
-          extra-prog-path:   $CABAL_DIR/bin
-          symlink-bindir:    $CABAL_DIR/bin
-          installdir:        $CABAL_DIR/bin
-          build-summary:     $CABAL_DIR/logs/build.log
-          store-dir:         $CABAL_DIR/store
-          install-dirs user
-            prefix: $CABAL_DIR
-          repository hackage.haskell.org
-            url: http://hackage.haskell.org/
-          EOF
-          cat >> $CABAL_CONFIG <<EOF
-          program-default-options
-            ghc-options: $GHCJOBS +RTS -M3G -RTS
-          EOF
-          cat $CABAL_CONFIG
-      - name: versions
-        run: |
-          $HC --version || true
-          $HC --print-project-git-commit-id || true
-          $CABAL --version || true
-      - name: update cabal index
-        run: |
-          $CABAL v2-update -v
-      - name: install cabal-plan
-        run: |
-          mkdir -p $HOME/.cabal/bin
-          curl -sL https://github.com/haskell-hvr/cabal-plan/releases/download/v0.7.3.0/cabal-plan-0.7.3.0-x86_64-linux.xz > cabal-plan.xz
-          echo 'f62ccb2971567a5f638f2005ad3173dba14693a45154c1508645c52289714cb2  cabal-plan.xz' | sha256sum -c -
-          xz -d < cabal-plan.xz > $HOME/.cabal/bin/cabal-plan
-          rm -f cabal-plan.xz
-          chmod a+x $HOME/.cabal/bin/cabal-plan
-          cabal-plan --version
-      - name: checkout
-        uses: actions/checkout@v3
-        with:
-          path: source
-      - name: initial cabal.project for sdist
-        run: |
-          touch cabal.project
-          echo "packages: $GITHUB_WORKSPACE/source/." >> cabal.project
-          echo "packages: $GITHUB_WORKSPACE/source/./examples" >> cabal.project
-          cat cabal.project
-      - name: sdist
-        run: |
-          mkdir -p sdist
-          $CABAL sdist all --output-dir $GITHUB_WORKSPACE/sdist
-      - name: unpack
-        run: |
-          mkdir -p unpacked
-          find sdist -maxdepth 1 -type f -name '*.tar.gz' -exec tar -C $GITHUB_WORKSPACE/unpacked -xzvf {} \;
-      - name: generate cabal.project
-        run: |
-          PKGDIR_scotty="$(find "$GITHUB_WORKSPACE/unpacked" -maxdepth 1 -type d -regex '.*/scotty-[0-9.]*')"
-          echo "PKGDIR_scotty=${PKGDIR_scotty}" >> "$GITHUB_ENV"
-          PKGDIR_scotty_examples="$(find "$GITHUB_WORKSPACE/unpacked" -maxdepth 1 -type d -regex '.*/scotty-examples-[0-9.]*')"
-          echo "PKGDIR_scotty_examples=${PKGDIR_scotty_examples}" >> "$GITHUB_ENV"
-          rm -f cabal.project cabal.project.local
-          touch cabal.project
-          touch cabal.project.local
-          echo "packages: ${PKGDIR_scotty}" >> cabal.project
-          echo "packages: ${PKGDIR_scotty_examples}" >> cabal.project
-          if [ $((HCNUMVER >= 80200)) -ne 0 ] ; then echo "package scotty" >> cabal.project ; fi
-          if [ $((HCNUMVER >= 80200)) -ne 0 ] ; then echo "    ghc-options: -Werror=missing-methods" >> cabal.project ; fi
-          if [ $((HCNUMVER >= 80200)) -ne 0 ] ; then echo "package scotty-examples" >> cabal.project ; fi
-          if [ $((HCNUMVER >= 80200)) -ne 0 ] ; then echo "    ghc-options: -Werror=missing-methods" >> cabal.project ; fi
-          cat >> cabal.project <<EOF
-          package scotty
-            ghc-options: -Werror
 
-          package scotty-examples
-            ghc-options: -Werror
-          EOF
-          $HCPKG list --simple-output --names-only | perl -ne 'for (split /\s+/) { print "constraints: $_ installed\n" unless /^(scotty|scotty-examples)$/; }' >> cabal.project.local
-          cat cabal.project
-          cat cabal.project.local
-      - name: dump install plan
-        run: |
-          $CABAL v2-build $ARG_COMPILER $ARG_TESTS $ARG_BENCH --dry-run all
-          cabal-plan
-      - name: restore cache
-        uses: actions/cache/restore@v3
-        with:
-          key: ${{ runner.os }}-${{ matrix.compiler }}-${{ github.sha }}
-          path: ~/.cabal/store
-          restore-keys: ${{ runner.os }}-${{ matrix.compiler }}-
-      - name: install dependencies
-        run: |
-          $CABAL v2-build $ARG_COMPILER --disable-tests --disable-benchmarks --dependencies-only -j2 all
-          $CABAL v2-build $ARG_COMPILER $ARG_TESTS $ARG_BENCH --dependencies-only -j2 all
-      - name: build
-        run: |
-          $CABAL v2-build $ARG_COMPILER $ARG_TESTS $ARG_BENCH all --write-ghc-environment-files=always
-      - name: tests
-        run: |
-          $CABAL v2-test $ARG_COMPILER $ARG_TESTS $ARG_BENCH all --test-show-details=direct
-      - name: cabal check
-        run: |
-          cd ${PKGDIR_scotty} || false
-          ${CABAL} -vnormal check
-          cd ${PKGDIR_scotty_examples} || false
-          ${CABAL} -vnormal check
-      - name: haddock
-        run: |
-          $CABAL v2-haddock --disable-documentation --haddock-all $ARG_COMPILER --with-haddock $HADDOCK $ARG_TESTS $ARG_BENCH all
-      - name: save cache
-        uses: actions/cache/save@v3
-        if: always()
-        with:
-          key: ${{ runner.os }}-${{ matrix.compiler }}-${{ github.sha }}
-          path: ~/.cabal/store
+    steps:
+    - uses: actions/checkout@v3
+      if: github.event.action == 'opened' || github.event.action == 'synchronize' || github.event.ref == 'refs/heads/master'
+    - uses: haskell/actions/setup@v2
+      id: setup-haskell-cabal
+      name: Setup Haskell
+      with:
+        ghc-version: ${{ matrix.ghc }}
+        cabal-version: ${{ matrix.cabal }}
+    - uses: actions/cache@v1
+      name: Cache ~/.cabal/store
+      with:
+        path: ${{ steps.setup-haskell-cabal.outputs.cabal-store }}
+        key: ${{ runner.os }}-${{ matrix.ghc }}--${{ github.Shah }}-cache
+    - name: Versions
+      run: |
+        cabal -V
+        ghc -V
+    - name: Build
+      run: |
+        cabal configure --haddock-all --enable-tests --enable-benchmarks --benchmark-option=-l
+        cabal build all --write-ghc-environment-files=always
+    - name: Test
+      run: |
+        cabal test all