Remove clang22 image tag

.gitea/workflows/build-ci-image.yml

@@ -44,10 +44,8 @@ jobs:
             --build-arg LLVM_VERSION=22 \
             --build-arg MESON_VERSION=latest \
             -t "$REGISTRY_IMAGE:latest" \
-            -t "$REGISTRY_IMAGE:clang22" \
             -f ci/Dockerfile .
 
       - name: Push CI image
         run: |
           docker push "$REGISTRY_IMAGE:latest"
-          docker push "$REGISTRY_IMAGE:clang22"

.gitea/workflows/build.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
 
     container:
-      image: git.neosisyphus.com/evol3d/evol-testbed:clang22
+      image: git.neosisyphus.com/evol3d/evol-testbed:latest
 
     steps:
       - uses: actions/checkout@v4

ci/Dockerfile

@@ -44,6 +44,7 @@ RUN set -eux; \
       libvulkan-dev \
       vulkan-tools \
       vulkan-validationlayers \
+      mesa-vulkan-drivers \
       glslang-tools \
       spirv-tools \
       spirv-headers; \

ci/README.md

@@ -13,6 +13,7 @@ It includes:
 - Ninja
 - Python 3 + pip + venv
 - Vulkan development packages/tools
+- Mesa Vulkan software/runtime drivers
 - Git/build-essential/pkg-config
 - Node/runtime pieces inherited from the act Ubuntu image, so JavaScript actions like `actions/checkout` keep working
 
@@ -75,10 +76,8 @@ Tag and push:
 docker login git.neosisyphus.com
 
 docker tag evol-testbed:latest git.neosisyphus.com/evol3d/evol-testbed:latest
-docker tag evol-testbed:latest git.neosisyphus.com/evol3d/evol-testbed:clang22
 
 docker push git.neosisyphus.com/evol3d/evol-testbed:latest
-docker push git.neosisyphus.com/evol3d/evol-testbed:clang22
 ```
 
 ## Build automatically in Gitea Actions
@@ -93,7 +92,6 @@ It builds and pushes:
 
 ```text
 ${REGISTRY_IMAGE}:latest
-${REGISTRY_IMAGE}:clang22
 ```
 
 ## Use in normal builds
@@ -102,12 +100,12 @@ ${REGISTRY_IMAGE}:clang22
 
 ```yaml
 container:
-  image: ${{ vars.CI_IMAGE }}:clang22
+  image: ${{ vars.CI_IMAGE }}:latest
 ```
 
 If expressions do not work in `container.image` on your Gitea version, replace it with the literal image path:
 
 ```yaml
 container:
-  image: git.neosisyphus.com/evol3d/evol-testbed:clang22
+  image: git.neosisyphus.com/evol3d/evol-testbed:latest
 ```

ci/USE_CI_IMAGE.md

@@ -30,6 +30,7 @@ It includes:
 - Ninja
 - Python 3 / pip / venv
 - Vulkan development packages/tools
+- Mesa Vulkan software/runtime drivers
 - `build-essential`
 - `pkg-config`
 - Git
@@ -59,11 +60,10 @@ Image path:
 git.neosisyphus.com/evol3d/evol-testbed
 ```
 
-The pushed tags will be:
+The pushed tag will be:
 
 ```text
 git.neosisyphus.com/evol3d/evol-testbed:latest
-git.neosisyphus.com/evol3d/evol-testbed:clang22
 ```
 
 ---
@@ -201,11 +201,10 @@ The image build workflow is:
 .gitea/workflows/build-ci-image.yml
 ```
 
-It logs into your registry, builds the image, and pushes two tags:
+It logs into your registry, builds the image, and pushes this tag:
 
 ```text
 latest
-clang22
 ```
 
 The important commands are:
@@ -218,13 +217,11 @@ The important commands are:
       --build-arg LLVM_VERSION=22 \
       --build-arg MESON_VERSION=latest \
       -t "${{ vars.REGISTRY_IMAGE }}:latest" \
-      -t "${{ vars.REGISTRY_IMAGE }}:clang22" \
       -f ci/Dockerfile .
 
 - name: Push CI image
   run: |
     docker push "${{ vars.REGISTRY_IMAGE }}:latest"
-    docker push "${{ vars.REGISTRY_IMAGE }}:clang22"
 ```
 
 ---
@@ -326,11 +323,10 @@ In Gitea:
 evol-testbed
 ```
 
-Confirm these tags exist:
+Confirm this tag exists:
 
 ```text
 latest
-clang22
 ```
 
 ---
@@ -347,7 +343,7 @@ It uses:
 
 ```yaml
 container:
-  image: ${{ vars.CI_IMAGE }}:clang22
+  image: ${{ vars.CI_IMAGE }}:latest
 ```
 
 If you set:
@@ -359,7 +355,7 @@ CI_IMAGE=git.neosisyphus.com/evol3d/evol-testbed
 then the workflow uses:
 
 ```text
-git.neosisyphus.com/evol3d/evol-testbed:clang22
+git.neosisyphus.com/evol3d/evol-testbed:latest
 ```
 
 The key workflow shape is:
@@ -376,7 +372,7 @@ jobs:
     runs-on: ubuntu-latest
 
     container:
-      image: ${{ vars.CI_IMAGE }}:clang22
+      image: ${{ vars.CI_IMAGE }}:latest
 
     steps:
       - uses: actions/checkout@v4
@@ -417,14 +413,14 @@ If the build fails because the image name is invalid, replace this:
 
 ```yaml
 container:
-  image: ${{ vars.CI_IMAGE }}:clang22
+  image: ${{ vars.CI_IMAGE }}:latest
 ```
 
 with the literal image name:
 
 ```yaml
 container:
-  image: git.neosisyphus.com/evol3d/evol-testbed:clang22
+  image: git.neosisyphus.com/evol3d/evol-testbed:latest
 ```
 
 Then commit and push:
@@ -466,13 +462,13 @@ If your runner itself is Dockerized, make sure Docker credentials are available
 On the runner host:
 
 ```bash
-docker pull git.neosisyphus.com/evol3d/evol-testbed:clang22
+docker pull git.neosisyphus.com/evol3d/evol-testbed:latest
 ```
 
 Run it:
 
 ```bash
-docker run --rm -it git.neosisyphus.com/evol3d/evol-testbed:clang22 bash
+docker run --rm -it git.neosisyphus.com/evol3d/evol-testbed:latest bash
 ```
 
 Inside the container:
@@ -491,7 +487,7 @@ Expected results:
 - `clang` should be version 22.
 - `meson` should print a version.
 - `ninja` should print a version.
-- `vulkaninfo --summary` may fail if the CI machine has no GPU/display/runtime Vulkan driver. That is usually okay for compile-only CI as long as Vulkan headers/tools are installed.
+- `vulkaninfo --summary` should usually find Mesa's software Vulkan driver. It may still fail on unusual container/runner setups; that is okay for compile-only CI as long as Vulkan headers/tools are installed.
 
 Exit:
 
@@ -517,7 +513,7 @@ jobs:
     runs-on: ubuntu-latest
 
     container:
-      image: git.neosisyphus.com/evol3d/evol-testbed:clang22
+      image: git.neosisyphus.com/evol3d/evol-testbed:latest
 
     steps:
       - uses: actions/checkout@v4
@@ -551,7 +547,6 @@ The image workflow will rebuild and push:
 
 ```text
 latest
-clang22
 ```
 
 Your normal builds will use the updated image next time they run.
@@ -563,31 +558,31 @@ Your normal builds will use the updated image next time they run.
 Instead of only using:
 
 ```text
-clang22
+latest
 ```
 
 consider immutable tags:
 
 ```text
-clang22-v1
+v1
-clang22-v2
+v2
-clang22-2026-05
+v2026-05
 ```
 
 Example build command tag:
 
 ```yaml
--t "${{ vars.REGISTRY_IMAGE }}:clang22-v1"
+-t "${{ vars.REGISTRY_IMAGE }}:v1"
 ```
 
 Then use:
 
 ```yaml
 container:
-  image: git.neosisyphus.com/evol3d/evol-testbed:clang22-v1
+  image: git.neosisyphus.com/evol3d/evol-testbed:v1
 ```
 
-This avoids surprise breakage when `clang22` or `latest` changes.
+This avoids surprise breakage when `latest` changes.
 
 ---
 
@@ -612,5 +607,5 @@ The most important final workflow line is:
 
 ```yaml
 container:
-  image: git.neosisyphus.com/evol3d/evol-testbed:clang22
+  image: git.neosisyphus.com/evol3d/evol-testbed:latest
 ```