NixOS Config

Personal Nix flake for four machines:

• michael - x86_64 Linux server
• tahani - x86_64 Linux home server / workstation
• chidi - aarch64 Darwin work laptop
• jason - aarch64 Darwin personal laptop

Repository Map

• modules/ - flake-parts modules, auto-imported via import-tree
• modules/_hosts/ - host-specific submodules like hardware, disks, and services
• modules/_lib/ - local helper functions
• apps/ - Nushell apps exposed through the flake
• secrets/ - SOPS-encrypted secrets
• flake.nix - generated flake entrypoint
• modules/dendritic.nix - source of truth for flake inputs and flake.nix generation

How It Is Structured

This repo uses den and organizes configuration around aspects instead of putting everything directly in host files.

• shared behavior lives in den.aspects.<name>.<class> modules
• hosts are declared in modules/hosts.nix
• host composition happens in modules/<host>.nix
• user-level config mostly lives in Home Manager aspects

Common examples:

• modules/core.nix - shared Nix and shell foundation
• modules/dev-tools.nix - VCS, language, and developer tooling
• modules/network.nix - SSH, fail2ban, and tailscale aspects
• modules/michael.nix - server composition for michael
• modules/tahani.nix - server/workstation composition for tahani

Common Commands

nix run .#build
nix run .#build -- michael
nix run .#apply
nix run .#deploy -- .#tahani
nix flake check
alejandra .

Updating The Flake

flake.nix is generated. Update inputs in modules/dendritic.nix, then regenerate:

nix run .#write-flake
alejandra .