feat: add readme

README.md

@@ -0,0 +1,19 @@
+# Dotfiles
+
+NixOS configuration files personalized for my workflow.
+
+To get started, install NixOS, clone this repository and run:
+
+```sh
+nixos-rebuild switch -I nixos-config=configuration.nix
+```
+
+I use `rustup` to manage the Rust toolchain including `cargo`, `rustc` and `rust-analyzer`.
+My editor `helix` is automatically able to utilize `rust-analyzer` as a language server.
+To reproduce my `rustup` config, run the following:
+
+```sh
+rustup install stable
+rustup component add rust-src
+rustup component add rust-analyzer
+```