Set up mise tasks and GitHub Actions workflow

.github/workflows/main.yaml

@@ -0,0 +1,15 @@
+# yaml-language-server: $schema=https://json.schemastore.org/github-workflow.json
+name: main
+on: [push, pull_request]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name == 'pull_request' && format('pr-{0}', github.event.pull_request.number) || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v6
+    - uses: jdx/mise-action@v4
+    - run: mise run check

.hongdown.toml

@@ -0,0 +1,3 @@
+no_inherit = true
+include = ["*.md", "**/*.md"]
+exclude = ["**/target/**"]

CONTRIBUTING.md

@@ -0,0 +1,60 @@
+Contributing to Feder
+=====================
+
+Thank you for your interest in contributing to feder. This document outlines
+the development workflow and the tools we use to maintain code quality.
+
+
+Prerequisites
+-------------
+
+We use mise to manage our development environment and tasks. Before you start,
+ensure you have the following installed:
+
+ -  mise
+ -  Rust (managed via mise)
+
+Once mise is installed, you can set up the project by running:
+
+~~~~ bash
+mise install
+~~~~
+
+
+Development workflow
+--------------------
+
+We use mise tasks to automate common development steps. Please ensure your
+changes pass the automated checks before submitting a pull request.
+
+### Code formatting
+
+We use `rustfmt` to maintain a consistent coding style. You can automatically
+format your code by running:
+
+~~~~ bash
+mise run fmt
+~~~~
+
+### Quality checks
+
+Before pushing your changes, run the full suite of quality checks. This
+includes type checking, linting with Clippy, and verifying that the code is
+correctly formatted.
+
+~~~~ bash
+mise run check
+~~~~
+
+We configure Clippy to treat all warnings as errors in `Cargo.toml`. This
+ensures that the codebase remains clean and free of common pitfalls. If
+`mise run check` fails, please address the reported issues before proceeding.
+
+### Git pre-commit hook
+
+You can automate the quality checks by registering a Git pre-commit hook. This
+will run the `check` task every time you commit.
+
+~~~~ bash
+mise generate git-pre-commit --write --task=check
+~~~~

Cargo.toml

@@ -5,3 +5,9 @@ edition = "2024"
 license = "AGPL-3.0-only"
 
 [dependencies]
+
+[lints.rust]
+warnings = "deny"
+
+[lints.clippy]
+all = "deny"

README.md

@@ -1,22 +1,27 @@
-# Feder
+Feder
+=====
 
 One ActivityPub core, many runtimes.
 
 Feder is an early-stage Rust project for building ActivityPub applications from
 a portable protocol core and platform-specific runtimes.
 
-## Motivation
+
+Motivation
+----------
 
 Feder grew out of work in the Fedify ecosystem and a question about smaller,
-cheaper, and more portable Fediverse software. What would it take for a
+cheaper, and more portable fediverse software. What would it take for a
 single-user ActivityPub server to run outside the usual VPS-shaped web
 application?
 
 One long-term direction is embedded or device-like federation: not moving a full
 Mastodon-style server onto a microcontroller, but decomposing ActivityPub
 software so different parts can run on machines with very different resources.
 
-## Approach
+
+Approach
+--------
 
 Feder separates ActivityPub protocol logic from platform execution. The core
 should contain federation behavior such as inbox/outbox state, delivery
@@ -26,7 +31,9 @@ such as networking, storage, clocks, scheduling, and execution.
 The first target is a Linux proof of concept for a small single-user
 ActivityPub server. Future runtimes may explore more constrained environments.
 
-## License
+
+License
+-------
 
 Feder is licensed under the GNU Affero General Public License v3.0. See
-[LICENSE](LICENSE) for details.
+[*LICENSE*](./LICENSE) for details.

mise.toml

@@ -0,0 +1,23 @@
+[tools]
+rust = "1.95.0"
+
+[tools."github:dahlia/hongdown"]
+version = "0.3.11"
+
+[tools."github:dahlia/hongdown".platforms]
+linux-x64 = "hongdown-*-x86_64-unknown-linux-musl.tar.bz2"
+linux-arm64 = "hongdown-*-aarch64-unknown-linux-musl.tar.bz2"
+
+[tasks.check]
+description = "Run type check, lint, and check Markdown format"
+run = [
+  "cargo check",
+  "cargo clippy",
+  "cargo fmt --check",
+  "hongdown --check",
+  "mise fmt --check",
+]
+
+[tasks.fmt]
+description = "Format code and docs"
+run = ["cargo fmt", "hongdown --write", "mise fmt"]