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+# Formatting & Style
+
+## Code formatting
+
+I'm allergic to discussions about formatting. I'd rather make the computer do it
+for me.
+
+For Rust, just use `cargo fmt`. For Python, use
+[black](https://github.com/psf/black). I'd rather not spend any effort in
+configuring the formatters (not possible for black anyway). For shell scripts,
+use [`shfmt`](https://github.com/mvdan/sh).
+
+To autoformat all code, use `just fmt`
+
+## Style
+
+Honestly, no idea about style. I'm still learning Rust, so I'm trying to find a
+good style. Just try to keep it consistent when you add code.
+
+## Linting
+
+You can use `just lint` to run all lints.
+
+### Rust
+
+Clippy is the guard that prevents shitty code from getting into the code base.
+When running `just check`, any clippy suggestions will make the command fail.
+So make clippy happy! The easiest way:
+
+* Commit your changes (so clippy can change safely).
+* Run `cargo clippy --fix` to do the easy changes automatically.
+* Run `cargo clippy` and take a look at the messages.
+
+Until now, I had no need to override or silence any clippy suggestions.
+
+### Shell
+
+`shellcheck` lints all shell scripts. As they change very rarely, this is not
+too important.
+
+## Unsafe code
+
+Any `unsafe` code is forbidden for now globally via `#![forbid(unsafe_code)]`.
+I cannot think of any reason GRM may need `unsafe`. If it comes up, it needs to
+be discussed.