Migrate to multi-page Hugo website and add project infrastructure

.github/ISSUE_TEMPLATE/feature-idea.yml

@@ -0,0 +1,53 @@
+name: Feature Idea
+description: Propose a new kernel feature idea
+labels: ["wishlist"]
+body:
+  - type: input
+    id: title
+    attributes:
+      label: Feature title
+      description: A short, descriptive title for the feature.
+      placeholder: "e.g., Support detached mounts with pivot_root()"
+    validations:
+      required: true
+
+  - type: textarea
+    id: description
+    attributes:
+      label: Description
+      description: Describe the feature and how it would work.
+    validations:
+      required: true
+
+  - type: textarea
+    id: usecase
+    attributes:
+      label: Use-Case
+      description: Why is this feature valuable? What problem does it solve?
+    validations:
+      required: true
+
+  - type: dropdown
+    id: category
+    attributes:
+      label: Category
+      description: Which subsystem area does this relate to?
+      multiple: true
+      options:
+        - mounts
+        - pidfd
+        - namespaces
+        - filesystems
+        - sockets
+        - cgroups
+        - block-devices
+        - security
+        - io-uring
+        - processes
+        - other
+
+  - type: textarea
+    id: links
+    attributes:
+      label: Related links
+      description: Links to mailing list threads, patches, documentation, etc.

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,17 @@
+## Feature
+
+<!-- Title of the feature being added, updated, or completed -->
+
+## Type
+
+<!-- Check one -->
+- [ ] New wishlist item
+- [ ] Moving item to in-progress
+- [ ] Marking item as completed
+- [ ] Other (describe below)
+
+## Checklist
+
+- [ ] Front matter is complete (`title`, `status`, `categories`)
+- [ ] Use-case section is included
+- [ ] Cc: Christian Brauner noted if implementing a feature from this list

.github/workflows/gh-pages.yml

@@ -13,7 +13,7 @@ jobs:
     concurrency:
       group: ${{ github.workflow }}-${{ github.ref }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           submodules: true
           fetch-depth: 0
@@ -27,6 +27,20 @@ jobs:
       - name: Build
         run: cd website && hugo --minify -d ../public
 
+      - name: Validate front matter
+        run: |
+          errors=0
+          for f in $(find website/content -name '*.md' ! -name '_index.md'); do
+            if ! head -1 "$f" | grep -q '^---$'; then
+              echo "ERROR: $f missing front matter"
+              errors=$((errors + 1))
+            fi
+          done
+          if [ "$errors" -gt 0 ]; then
+            echo "$errors file(s) with missing front matter"
+            exit 1
+          fi
+
       - name: Deploy
         uses: peaceiris/actions-gh-pages@v3
         if: ${{ github.ref == 'refs/heads/main' }}

CONTRIBUTING.md

@@ -0,0 +1,77 @@
+# Contributing
+
+Thank you for your interest in the UAPI Group Kernel Feature Wishlist. This
+document explains how to propose new features, claim existing ones, or mark
+items as completed.
+
+## Proposing a new feature
+
+1. Create a new Markdown file in the appropriate section directory
+   under `website/content/`:
+   - `wishlist/` for new ideas
+   - `in-progress/` for features you are actively working on
+
+2. Use the following front matter template:
+
+   ```yaml
+   ---
+   title: "Short descriptive title"
+   weight: 10
+   status: wishlist
+   categories:
+     - mounts
+     - namespaces
+   ---
+   ```
+
+3. Include a clear description of the feature and a **Use-Case** section
+   explaining why this would be valuable.
+
+4. Open a pull request.
+
+## Claiming an item
+
+To indicate you are working on a wishlist item:
+
+1. Move the file from `website/content/wishlist/` to
+   `website/content/in-progress/`.
+2. Update the `status` field in the front matter to `in-progress`.
+3. Open a pull request with your GitHub handle or email address noted.
+
+## Marking an item as completed
+
+When a feature has been merged into the kernel:
+
+1. Move the file from its current location to `website/content/completed/`.
+2. Update the `status` field to `completed`.
+3. Add a `commit` field to the front matter with the commit SHA.
+4. Open a pull request.
+
+## Attribution
+
+**When implementing ideas on this list or ideas inspired by this list,
+please point that out explicitly and clearly in the associated patches
+and Cc `Christian Brauner <brauner (at) kernel (dot) org>`.**
+
+## Categories
+
+Use one or more of the following categories in front matter:
+
+- `mounts` — mount namespaces, pivot_root, move_mount, statmount
+- `pidfd` — pidfd xattrs, CLONE_PIDFD, SCM_PIDFD
+- `namespaces` — user namespaces, PID namespaces, mount namespaces
+- `filesystems` — nullfs, blobfs, overlayfs, tmpfs, binfmt_misc
+- `sockets` — AF_UNIX, SCM_RIGHTS, SCM_PIDFD
+- `cgroups` — device cgroups, coredump limits
+- `block-devices` — loop devices, dm-verity, diskseq
+- `security` — LSM hooks, user namespace restrictions
+- `io-uring` — io_uring extensions
+- `processes` — pidfd, clone3, waitid, prctl
+
+## Local development
+
+```sh
+git clone --recurse-submodules https://github.com/uapi-group/kernel-features.git
+cd kernel-features/website
+hugo server
+```