diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 3e030940b..a1be9efdc 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -43,7 +43,10 @@ workflow:
     - when: always
 
 variables:
-  YNH_BUILD_DIR: "/ynh-build"
+  GIT_CLONE_PATH: '$CI_BUILDS_DIR/$CI_COMMIT_SHA/$CI_JOB_ID'
+  YNH_SOURCE: "https://github.com/yunohost"
+  YNH_DEBIAN: "bookworm"
+  YNH_SKIP_DIAGNOSIS_DURING_UPGRADE: "true"
 
 include:
   - template: Code-Quality.gitlab-ci.yml
diff --git a/.gitlab/ci/build.gitlab-ci.yml b/.gitlab/ci/build.gitlab-ci.yml
index d8fa641b4..422d8f74a 100644
--- a/.gitlab/ci/build.gitlab-ci.yml
+++ b/.gitlab/ci/build.gitlab-ci.yml
@@ -2,20 +2,18 @@
   stage: build
   image: "build-and-lint"
   variables:
-    YNH_SOURCE: "https://github.com/yunohost"
+    YNH_BUILD_DIR: "$GIT_CLONE_PATH/build"
   before_script:
     - mkdir -p $YNH_BUILD_DIR
-    - DEBIAN_FRONTEND=noninteractive apt update
   artifacts:
     paths:
       - ./*.deb
 
 .build_script: &build_script
-  - DEBIAN_FRONTEND=noninteractive apt --assume-yes -o Dpkg::Options::="--force-confold" install devscripts --no-install-recommends
   - cd $YNH_BUILD_DIR/$PACKAGE
   - VERSION=$(dpkg-parsechangelog -S Version 2>/dev/null)
-  - VERSION_NIGHTLY="${VERSION}+$(date +%Y%m%d%H%M)"
-  - dch --package "${PACKAGE}" --force-bad-version -v "${VERSION_NIGHTLY}" -D "unstable" --force-distribution "Daily build."
+  - VERSION_TIMESTAMPED="${VERSION}+$(date +%Y%m%d%H%M)"
+  - dch --package "${PACKAGE}" --force-bad-version -v "${VERSION_TIMESTAMPED}" -D "unstable" --force-distribution "CI build."
   - debuild --no-lintian -us -uc
   - cp $YNH_BUILD_DIR/*.deb ${CI_PROJECT_DIR}/
   - cd ${CI_PROJECT_DIR}
@@ -36,14 +34,12 @@ build-yunohost:
     - DEBIAN_FRONTEND=noninteractive apt --assume-yes -o Dpkg::Options::="--force-confold" build-dep $YNH_BUILD_DIR/$PACKAGE
     - *build_script
 
-
 build-ssowat:
   extends: .build-stage
   variables:
     PACKAGE: "ssowat"
   script:
-    - DEBIAN_DEPENDS=$(cat debian/control | tr "," "\n" | grep -Po "ssowat \([>,=,<]+ .*\)" | grep -Po "[0-9\.]+")
-    - git clone $YNH_SOURCE/$PACKAGE -b $CI_COMMIT_REF_NAME $YNH_BUILD_DIR/$PACKAGE --depth 1 || git clone $YNH_SOURCE/$PACKAGE -b $DEBIAN_DEPENDS $YNH_BUILD_DIR/$PACKAGE --depth 1 || git clone $YNH_SOURCE/$PACKAGE $YNH_BUILD_DIR/$PACKAGE --depth 1
+    - git clone $YNH_SOURCE/$PACKAGE -b $CI_COMMIT_REF_NAME $YNH_BUILD_DIR/$PACKAGE --depth 1 || git clone $YNH_SOURCE/$PACKAGE -b $YNH_DEBIAN $YNH_BUILD_DIR/$PACKAGE --depth 1 || git clone $YNH_SOURCE/$PACKAGE $YNH_BUILD_DIR/$PACKAGE --depth 1
     - DEBIAN_FRONTEND=noninteractive apt --assume-yes -o Dpkg::Options::="--force-confold" build-dep $YNH_BUILD_DIR/$PACKAGE
     - *build_script
 
@@ -52,7 +48,6 @@ build-moulinette:
   variables:
     PACKAGE: "moulinette"
   script:
-    - DEBIAN_DEPENDS=$(cat debian/control | tr "," "\n" | grep -Po "moulinette \([>,=,<]+ .*\)" | grep -Po "[0-9\.]+")
-    - git clone $YNH_SOURCE/$PACKAGE -b $CI_COMMIT_REF_NAME $YNH_BUILD_DIR/$PACKAGE --depth 1 || git clone $YNH_SOURCE/$PACKAGE -b $DEBIAN_DEPENDS $YNH_BUILD_DIR/$PACKAGE --depth 1 || git clone $YNH_SOURCE/$PACKAGE $YNH_BUILD_DIR/$PACKAGE --depth 1
+    - git clone $YNH_SOURCE/$PACKAGE -b $CI_COMMIT_REF_NAME $YNH_BUILD_DIR/$PACKAGE --depth 1 || git clone $YNH_SOURCE/$PACKAGE -b $YNH_DEBIAN $YNH_BUILD_DIR/$PACKAGE --depth 1 || git clone $YNH_SOURCE/$PACKAGE $YNH_BUILD_DIR/$PACKAGE --depth 1
     - DEBIAN_FRONTEND=noninteractive apt --assume-yes -o Dpkg::Options::="--force-confold" build-dep $YNH_BUILD_DIR/$PACKAGE
     - *build_script
diff --git a/.gitlab/ci/doc.gitlab-ci.yml b/.gitlab/ci/doc.gitlab-ci.yml
index a69b94ed5..179190166 100644
--- a/.gitlab/ci/doc.gitlab-ci.yml
+++ b/.gitlab/ci/doc.gitlab-ci.yml
@@ -7,7 +7,6 @@ generate-helpers-doc:
   image: "build-and-lint"
   needs: []
   before_script:
-    - apt-get update -y && apt-get install git hub -y
     - git config --global user.email "yunohost@yunohost.org"
     - git config --global user.name "$GITHUB_USER"
   script:
diff --git a/.gitlab/ci/install.gitlab-ci.yml b/.gitlab/ci/install.gitlab-ci.yml
index 68f57a1c0..bbe4042d8 100644
--- a/.gitlab/ci/install.gitlab-ci.yml
+++ b/.gitlab/ci/install.gitlab-ci.yml
@@ -16,7 +16,6 @@ upgrade:
   extends: .install-stage
   image: "core-tests"
   script:
-    - apt-get update -o Acquire::Retries=3
     - DEBIAN_FRONTEND=noninteractive SUDO_FORCE_REMOVE=yes apt --assume-yes -o Dpkg::Options::="--force-confold" --allow-downgrades install ${CI_PROJECT_DIR}/*.deb
 
 
@@ -24,6 +23,5 @@ install-postinstall:
   extends: .install-stage
   image: "before-install"
   script:
-    - apt-get update -o Acquire::Retries=3
     - DEBIAN_FRONTEND=noninteractive SUDO_FORCE_REMOVE=yes apt --assume-yes -o Dpkg::Options::="--force-confold" --allow-downgrades install ${CI_PROJECT_DIR}/*.deb
     - yunohost tools postinstall -d domain.tld -u syssa -F 'Syssa Mine' -p the_password --ignore-dyndns --force-diskspace
diff --git a/.gitlab/ci/test.gitlab-ci.yml b/.gitlab/ci/test.gitlab-ci.yml
index 4fead982a..e138672d2 100644
--- a/.gitlab/ci/test.gitlab-ci.yml
+++ b/.gitlab/ci/test.gitlab-ci.yml
@@ -1,5 +1,4 @@
 .install_debs: &install_debs
-    - apt-get update -o Acquire::Retries=3
     - DEBIAN_FRONTEND=noninteractive SUDO_FORCE_REMOVE=yes apt --assume-yes -o Dpkg::Options::="--force-confold" --allow-downgrades install ${CI_PROJECT_DIR}/*.deb
     - pip3 install -U mock pip pytest pytest-cov pytest-mock pytest-sugar requests-mock "packaging<22"
 
diff --git a/.gitlab/ci/translation.gitlab-ci.yml b/.gitlab/ci/translation.gitlab-ci.yml
index 080a0c3da..bc9e1308d 100644
--- a/.gitlab/ci/translation.gitlab-ci.yml
+++ b/.gitlab/ci/translation.gitlab-ci.yml
@@ -16,7 +16,6 @@ autofix-translated-strings:
   image: "build-and-lint"
   needs: []
   before_script:
-    - apt-get update -y && apt-get install git hub -y
     - git config --global user.email "yunohost@yunohost.org"
     - git config --global user.name "$GITHUB_USER"
     - hub clone --branch ${CI_COMMIT_REF_NAME} "https://$GITHUB_TOKEN:x-oauth-basic@github.com/YunoHost/yunohost.git" github_repo