This is a personal dotfiles repository for NixOS, authored by Henrik Lissner (hlissner). It serves as a complete, declarative system configuration for multiple machines (laptops, desktops, and a HTPC) using Nix flakes. The repository defines the entire system—from the bootloader and kernel parameters to the desktop environment (Hyprland), shell (zsh, tmux), development tools, and custom utilities. It is not a standalone application but a collection of configuration files, NixOS modules, and scripts that together form a highly opinionated, reproducible computing environment. The architecture is centered around a Nix flake (flake.nix) that imports modular NixOS modules organized by category (desktop, development, editors, shell, services, hardware profiles, themes, etc.). A custom CLI tool called 'hey' (written in Janet) provides a command hub for system management tasks like rebuilding, garbage collection, profile switching, and dotfile synchronization. The desktop environment is heavily customized with Hyprland (Wayland compositor), rofi launcher menus, matugen-based dynamic theming, and a suite of utility scripts for screenshots, screen recording, audio, and more. While the repository is not designed for reuse by others (it explicitly warns against being used as a community framework), several components demonstrate high craftsmanship and could be extracted with minimal modification. The Janet libraries under lib/hey/ provide a reusable command-line argument parser, an async rofi interaction library, and general utility functions. The Nix library (lib/nixos.nix) implements a flake builder pattern that could be adapted for other multi-host NixOS setups. The matugen templates and rofi themes are also potentially reusable as standalone theming assets.