diff --git a/.github/workflows/Makefile b/.github/workflows/Makefile
index a345bbf..de69c09 100644
--- a/.github/workflows/Makefile
+++ b/.github/workflows/Makefile
@@ -13,6 +13,9 @@ all: $(OBJS)
 clean:
 	rm -f $(OBJS)
 
+format:
+	jsonnetfmt -i *.jsonnet
+
 # for pad's codemap
 .PHONY: gen-codemapignore
 gen-codemapignore: $(OBJS)
diff --git a/.github/workflows/build-and-test.jsonnet b/.github/workflows/build-and-test.jsonnet
index f32ccf1..d579d9b 100644
--- a/.github/workflows/build-and-test.jsonnet
+++ b/.github/workflows/build-and-test.jsonnet
@@ -1,3 +1,5 @@
+// Build and test using setup-ocaml@v2 mostly.
+
 // ----------------------------------------------------------------------------
 // Helpers
 // ----------------------------------------------------------------------------
@@ -6,75 +8,47 @@ local checkout = {
   uses: 'actions/checkout@v3',
 };
 
-local build_script = |||
-        ./configure
-        . ./env
-        mk
-        mk install
-|||;
-
 // ----------------------------------------------------------------------------
-// The jobs
+// The job
 // ----------------------------------------------------------------------------
 
-// Arch
-local build_x86_linux_arch_job = {
+local job = {
+  // LATER:
+  //  strategy:
+  //    fail-fast: false
+  //    matrix:
+  //      os:
+  //        - macos-latest
+  //        - ubuntu-latest
+  //        - windows-latest
+  //      ocaml-compiler:
+  //        - "5.1"
+  //
+  //  runs-on: ${{ matrix.os }}
   'runs-on': 'ubuntu-latest',
-  container: 'archlinux',
   steps: [
     checkout,
+    {
+      uses: "ocaml/setup-ocaml@v2",
+      with: {
+	// TODO: ${{ matrix.ocaml-compiler }}
+	'ocaml-compiler': "4.02.1",
+      }
+    },
     {
       name: 'Install dependencies',
       run: |||
-	pacman -Sy --noconfirm gcc lib32-glibc lib32-gcc-libs
+        echo No dependencies! This is xix! It does not need anything!
       |||,
     },
     {
-      name: 'Build',
-      run: build_script,
-    }
-  ]
-};
-
-// Alpine
-//local build_x86_linux_alpine_job = {
-//  'runs-on': 'ubuntu-latest',
-//  // alpine does not support gcc-multilib like ubuntu/arch
-//  // so simpler to start from a 32 bits alpine image
-//  // But this does not seem to work well with GHA :(
-//  container: 'i386/alpine',
-//  steps: [
-//    checkout,
-//    {
-//      name: 'Install dependencies',
-//      run: |||
-//	apk add bash gcc
-//      |||,
-//    },
-//    {
-//      name: 'Build',
-//      run: build_script,
-//    }
-//  ]
-//};
-
-// Ubuntu
-local build_x86_linux_ubuntu_job = {
-  'runs-on': 'ubuntu-latest',
-  steps: [
-    checkout,
-    {
-      name: 'Install dependencies',
+      name: 'Build mk/rc',
       run: |||
-	sudo apt update
-	sudo apt-get install -y gcc-multilib
+        eval $(opam env)
+        ./bootstrap-mk.sh
       |||,
     },
-    {
-      name: 'Build',
-      run: build_script,
-    }
-  ]
+  ],
 };
 
 // ----------------------------------------------------------------------------
@@ -93,10 +67,14 @@ local build_x86_linux_ubuntu_job = {
         'master',
       ],
     },
+    schedule: [
+      {
+        // every day at 12:59
+        cron: '59 12 * * *',
+      },
+    ],
   },
   jobs: {
-    'build-x86-linux-arch': build_x86_linux_arch_job,
-    //'build-x86-linux-alpine': build_x86_linux_alpine_job,
-    'build-x86-linux-ubuntu': build_x86_linux_ubuntu_job,
+    job: job,
   },
 }
diff --git a/.github/workflows/build-and-test.yml b/.github/workflows/build-and-test.yml
index b7e4153..475d6df 100644
--- a/.github/workflows/build-and-test.yml
+++ b/.github/workflows/build-and-test.yml
@@ -1,37 +1,25 @@
 # AUTOGENERATED FROM build-and-test.jsonnet DO NOT MODIFY
 jobs:
-  build-x86-linux-arch:
-    container: archlinux
+  job:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
+      - uses: ocaml/setup-ocaml@v2
+        with:
+          ocaml-compiler: 4.02.1
       - name: Install dependencies
         run: |
-          pacman -Sy --noconfirm gcc lib32-glibc lib32-gcc-libs
-      - name: Build
+          echo No dependencies! This is xix! It does not need anything!
+      - name: Build mk/rc
         run: |
-          ./configure
-          . ./env
-          mk
-          mk install
-  build-x86-linux-ubuntu:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-      - name: Install dependencies
-        run: |
-          sudo apt update
-          sudo apt-get install -y gcc-multilib
-      - name: Build
-        run: |
-          ./configure
-          . ./env
-          mk
-          mk install
+          eval $(opam env)
+          ./bootstrap-mk.sh
 name: build-and-test
 on:
   pull_request: null
   push:
     branches:
       - master
+  schedule:
+    - cron: 59 12 * * *
   workflow_dispatch: null
diff --git a/Makefile b/Makefile
index 59457bd..16015f2 100644
--- a/Makefile
+++ b/Makefile
@@ -29,6 +29,16 @@ clean:
 # Developer targets
 ###############################################################################
 
+pr:
+	git push origin `git rev-parse --abbrev-ref HEAD`
+	hub pull-request -b master
+
+push:
+	git push origin `git rev-parse --abbrev-ref HEAD`
+
+merge:
+	A=`git rev-parse --abbrev-ref HEAD` && git checkout master && git pull && git branch -D $$A
+
 # See https://github.com/aryx/codemap
 visual:
 	codemap -screen_size 3 -filter semgrep -efuns_client efuns_client -emacs_client /dev/null .