diff --git a/.github/workflows/ci-linux.yml b/.github/workflows/ci-linux.yml
index 7c0d22118c0..76d915be2c9 100644
--- a/.github/workflows/ci-linux.yml
+++ b/.github/workflows/ci-linux.yml
@@ -1,246 +1,91 @@
 name: CI Linux
 
-## This GitHub Actions workflow runs SAGE_ROOT/tox.ini with select environments,
-## whenever a GitHub pull request is opened or synchronized in a repository
-## where GitHub Actions are enabled.
-##
-## It builds and checks some sage spkgs as defined in TARGETS.
-##
-## A job succeeds if there is no error.
-##
-## The build is run with "make V=0", so the build logs of individual packages are suppressed.
-##
-## At the end, all package build logs that contain an error are printed out.
-##
-## After all jobs have finished (or are canceled) and a short delay,
-## tar files of all logs are made available as "build artifacts".
-
-#on: [push, pull_request]
-
 on:
   push:
-    tags:
-      - '*'
+  # TODO: Reenable this before merging
+  #  tags:
+  #    - '*'
   workflow_dispatch:
     # Allow to run manually
 
-env:
-  TARGETS_PRE: all-sage-local
-  TARGETS: build doc-html
-  TARGETS_OPTIONAL: ptest
-
-permissions:
-  packages: write
-
 jobs:
-
-  # standard-pre and standard (without ptest) for the default platform (used by build.yml etc.)
-  default:
-    uses: ./.github/workflows/docker.yml
-    with:
-      # Build from scratch
-      docker_targets: "with-system-packages configured with-targets-pre with-targets"
-      # FIXME: duplicated from env.TARGETS
-      targets_pre: all-sage-local
-      targets: build doc-html
-      targets_optional: ptest
-      tox_system_factors: >-
-        ["ubuntu-focal"]
-      tox_packages_factors: >-
-        ["standard"]
-      docker_push_repository: ghcr.io/${{ github.repository }}/
-
-  # All platforms. This duplicates the default platform, but why not,
-  # it makes it more robust regarding random timeouts.
-
-  standard-pre:
-    if: ${{ success() || failure() }}
-    uses: ./.github/workflows/docker.yml
-    with:
-      # Build from scratch
-      docker_targets: "with-system-packages configured with-targets-pre"
-      # FIXME: duplicated from env.TARGETS
-      targets_pre: all-sage-local
-      tox_packages_factors: >-
-          ["standard"]
-      docker_push_repository: ghcr.io/${{ github.repository }}/
-      # Make sure that all "standard-pre" jobs can start simultaneously,
-      # so that runners are available by the time that "default" starts.
-      max_parallel: 50
-
-  standard:
-    if: ${{ success() || failure() }}
-    needs: [standard-pre]
-    uses: ./.github/workflows/docker.yml
-    with:
-      # Build incrementally from previous stage (pre)
-      incremental: true
-      free_disk_space: true
-      from_docker_repository: ghcr.io/${{ github.repository }}/
-      from_docker_target: "with-targets-pre"
-      docker_targets: "with-targets with-targets-optional"
-      # FIXME: duplicated from env.TARGETS
-      targets: build doc-html
-      targets_optional: ptest
-      tox_packages_factors: >-
-          ["standard"]
-      docker_push_repository: ghcr.io/${{ github.repository }}/
-      # Reduce from 30 to 20 because it runs in parallel with 'standard-sitepackages'
-      # and 'minimal-pre' below
-      max_parallel: 20
-
-  standard-sitepackages:
-    if: ${{ success() || failure() }}
-    needs: [standard-pre]
-    uses: ./.github/workflows/docker.yml
-    with:
-      # Build incrementally from previous stage (pre)
-      incremental: true
-      free_disk_space: true
-      from_docker_repository: ghcr.io/${{ github.repository }}/
-      from_docker_target: "with-targets-pre"
-      docker_targets: "with-targets with-targets-optional"
-      # FIXME: duplicated from env.TARGETS
-      targets: build doc-html
-      targets_optional: ptest
-      tox_packages_factors: >-
-        ["standard-sitepackages"]
-      # Only test systems with a usable system python (>= 3.9)
-      tox_system_factors: >-
-        ["ubuntu-jammy",
-         "ubuntu-lunar",
-         "ubuntu-mantic",
-         "debian-bullseye",
-         "debian-bookworm",
-         "debian-trixie",
-         "debian-sid",
-         "linuxmint-21",
-         "linuxmint-21.1",
-         "linuxmint-21.2",
-         "fedora-33",
-         "fedora-34",
-         "fedora-35",
-         "fedora-36",
-         "fedora-37",
-         "fedora-38",
-         "fedora-39",
-         "centos-stream-8-python3.9",
-         "centos-stream-9-python3.9",
-         "almalinux-8-python3.9",
-         "gentoo-python3.10",
-         "gentoo-python3.11",
-         "archlinux-latest",
-         "opensuse-15.4-gcc_11-python3.10",
-         "opensuse-15.5-gcc_11-python3.11",
-         "opensuse-tumbleweed-python3.10",
-         "opensuse-tumbleweed",
-         "debian-bullseye-i386"]
-      docker_push_repository: ghcr.io/${{ github.repository }}/
-      max_parallel: 8
-
-  minimal-pre:
-    if: ${{ success() || failure() }}
-    uses: ./.github/workflows/docker.yml
-    with:
-      # Build from scratch
-      docker_targets: "with-system-packages configured with-targets-pre"
-      # FIXME: duplicated from env.TARGETS
-      targets_pre: all-sage-local
-      tox_packages_factors: >-
-          ["minimal"]
-      docker_push_repository: ghcr.io/${{ github.repository }}/
-      # Reduced from 30 because it may run in parallel with 'standard' and 'standard-sitepackages' above.
-      # Calibrated for clogging the job pipeline until the "default" job has finished.
-      max_parallel: 24
-
-  minimal:
-    if: ${{ success() || failure() }}
-    needs: [minimal-pre]
-    uses: ./.github/workflows/docker.yml
-    with:
-      # Build incrementally from previous stage (pre)
-      incremental: true
-      free_disk_space: true
-      from_docker_repository: ghcr.io/${{ github.repository }}/
-      from_docker_target: "with-targets-pre"
-      docker_targets: "with-targets with-targets-optional"
-      # FIXME: duplicated from env.TARGETS
-      targets: build doc-html
-      targets_optional: ptest
-      tox_packages_factors: >-
-          ["minimal"]
-      docker_push_repository: ghcr.io/${{ github.repository }}/
-      max_parallel: 24
-
-  maximal-pre:
-    if: ${{ success() || failure() }}
-    needs: [minimal]
-    uses: ./.github/workflows/docker.yml
-    with:
-      free_disk_space: true
-      # Build from scratch
-      docker_targets: "with-system-packages configured with-targets-pre"
-      # FIXME: duplicated from env.TARGETS
-      targets_pre: all-sage-local
-      tox_packages_factors: >-
-          ["maximal"]
-      docker_push_repository: ghcr.io/${{ github.repository }}/
-
-  optional-0-o:
-    if: ${{ success() || failure() }}
-    needs: [maximal-pre]
-    uses: ./.github/workflows/docker.yml
-    with:
-      incremental: true
-      free_disk_space: true
-      from_docker_repository: ghcr.io/${{ github.repository }}/
-      from_docker_target: "with-targets-pre"
-      tox_packages_factors: >-
-          ["maximal"]
-      docker_targets: "with-targets-optional"
-      # [0-9a-o] excludes _, in particular package _develop
-      targets_optional: '$(echo $(export PATH=build/bin:$PATH && sage-package list :optional: --has-file "spkg-install.in|spkg-install|requirements.txt" --no-file "huge|has_nonfree_dependencies" | grep -v sagemath_doc | grep ^[0-9a-o]))'
-
-
-  optional-p-z:
-    if: ${{ success() || failure() }}
-    needs: [optional-0-o]
-    uses: ./.github/workflows/docker.yml
-    with:
-      incremental: true
-      free_disk_space: true
-      from_docker_repository: ghcr.io/${{ github.repository }}/
-      from_docker_target: "with-targets-pre"
-      tox_packages_factors: >-
-          ["maximal"]
-      docker_targets: "with-targets-optional"
-      # [0-9a-o] excludes _, in particular package _develop
-      targets_optional: '$(echo $(export PATH=build/bin:$PATH && sage-package list :optional: --has-file "spkg-install.in|spkg-install|requirements.txt" --no-file "huge|has_nonfree_dependencies" | grep -v sagemath_doc | grep ^[p-z]))'
-
-  experimental-0-o:
-    if: ${{ success() || failure() }}
-    needs: [optional-p-z]
-    uses: ./.github/workflows/docker.yml
-    with:
-      incremental: true
-      free_disk_space: true
-      from_docker_repository: ghcr.io/${{ github.repository }}/
-      from_docker_target: "with-targets-pre"
-      tox_packages_factors: >-
-          ["maximal"]
-      docker_targets: "with-targets-optional"
-      targets_optional: '$(echo $(export PATH=build/bin:$PATH && sage-package list :experimental: --has-file "spkg-install.in|spkg-install|requirements.txt" --no-file "huge|has_nonfree_dependencies" | grep -v sagemath_doc | grep ^[0-9a-o]))'
-
-  experimental-p-z:
-    if: ${{ success() || failure() }}
-    needs: [experimental-0-o]
-    uses: ./.github/workflows/docker.yml
-    with:
-      incremental: true
-      free_disk_space: true
-      from_docker_repository: ghcr.io/${{ github.repository }}/
-      from_docker_target: "with-targets-pre"
-      tox_packages_factors: >-
-          ["maximal"]
-      docker_targets: "with-targets-optional"
-      targets_optional: '$(echo $(export PATH=build/bin:$PATH && sage-package list :experimental: --has-file "spkg-install.in|spkg-install|requirements.txt" --no-file "huge|has_nonfree_dependencies" | grep -v sagemath_doc | grep ^[p-z]))'
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        container:
+          - ubuntu-trusty-toolchain-gcc_9
+          - ubuntu-xenial-toolchain-gcc_9
+          - ubuntu-bionic-gcc_8
+          - ubuntu-focal
+          - ubuntu-jammy
+          - ubuntu-lunar
+          - ubuntu-mantic
+          - debian-buster-gcc_spkg
+          - debian-bullseye
+          - debian-bookworm
+          - debian-trixie
+          - debian-sid
+          - linuxmint-20.1
+          - linuxmint-20.2
+          - linuxmint-20.3
+          - linuxmint-21
+          - linuxmint-21.1
+          - linuxmint-21.2
+          - fedora-30
+          - fedora-31
+          - fedora-32
+          - fedora-33
+          - fedora-34
+          - fedora-35
+          - fedora-36
+          - fedora-37
+          - fedora-38
+          - fedora-39
+          - centos-7-devtoolset-gcc_11
+          - centos-stream-8-python3.9
+          - centos-stream-9-python3.9
+          - almalinux-8-python3.9
+          - almalinux-9-python3.11
+          - sheerluck/sage-on-gentoo-stage4
+          - archlinux-latest
+          - opensuse-15.3-gcc_11-python3.9
+          - opensuse-15.4-gcc_11-python3.10
+          - opensuse-15.5-gcc_11-python3.11
+          - opensuse/tumbleweed
+          - ubuntu-bionic-gcc_8-i386
+          - debian-bullseye-i386
+    container:
+      image: ${{ matrix.container }}
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Check for Python version
+        run: |
+          echo "install_python=$(python -c 'import sys; print(sys.version_info < (3, 9))'" >> $GITHUB_ENV
+
+      - name: Setup Python
+        uses: actions/setup-python@v2
+        if: ${{ env.install_python }}
+        with:
+          python-version: 3.9
+
+      - name: Install dependencies
+        run: |
+          eval $(build/bin/sage-print-system-package-command auto update)
+          eval $(build/bin/sage-print-system-package-command auto --yes install $(build/bin/sage-get-system-packages auto $(build/bin/sage-package list :standard:)))
+
+      - name: Bootstrap
+        run: python -m sage_setup.autogen.interpreters src/sage/ext/interpreters
+        env:
+          PYTHONPATH: src
+
+      - name: Build
+        run: pip install --no-build-isolation --config-settings=builddir=builddir . -v
+
+      - name: Test
+        allow_failure: true
+        run: ./sage -t --all -p4
+        
\ No newline at end of file
diff --git a/build/bin/sage-package b/build/bin/sage-package
index 02a07140875..1d4cf8f8b25 100755
--- a/build/bin/sage-package
+++ b/build/bin/sage-package
@@ -1,4 +1,4 @@
-#!/usr/bin/env sage-bootstrap-python
+#!/usr/bin/env python
 
 # Script to manage third-party tarballs.
 #