asxpi/nixOS
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My nixOS config
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Sergei Poljanski 1d1f5600eb
 security: enable core dumps and on-demand debug symbols 
gnome-shell keeps segfaulting in libmutter, and with the PAM core
limit at 0 systemd-coredump threw every dump away, so there was no
backtrace to work from. Raise the limit to unlimited; dumps land
root-owned in /var/lib/systemd/coredump, readable only by their
owner. Enable nixseparatedebuginfod2 so gdb/coredumpctl can fetch
symbols for store paths on demand.

The user manager inherits the limit at its first login, so it takes
a reboot (or a full logout) to apply.

Assisted-by: Claude:opus-5
2026-10-13 06:31:49 +04:00
modules security: enable core dumps and on-demand debug symbols 2026-10-13 06:31:49 +04:00
patches security: enable core dumps and on-demand debug symbols 2026-10-13 06:31:49 +04:00
secrets sops: introduce sops-nix (age), ssh keys from encrypted tarball, .example secrets 2026-07-14 12:24:21 +04:00
.gitignore sops: introduce sops-nix (age), ssh keys from encrypted tarball, .example secrets 2026-07-14 12:24:21 +04:00
.sops.yaml sops: introduce sops-nix (age), ssh keys from encrypted tarball, .example secrets 2026-07-14 12:24:21 +04:00
configuration.nix sops: introduce sops-nix (age), ssh keys from encrypted tarball, .example secrets 2026-07-14 12:24:21 +04:00
flake.lock flake: bump inputs (nixpkgs 2026-07-11 -> 2026-08-04); anotherim needs sqlcipher, curl 2026-10-03 21:35:54 +04:00
flake.nix lemonade: XDNA2 NPU LLM serving via nix-amd-ai 2026-07-11 22:36:00 +04:00
hardware-configuration.nix ThinkPad T14 G2 AMD -> P14s G6 AMD 2026-05-07 17:55:07 +03:00
README.md readme: add Assisted-by 2026-07-14 12:44:17 +04:00

README.md

NixOS

Assisted-by: Claude (claude-opus-4-5 → claude-opus-4-6 → claude-opus-4-7 → claude-opus-4-8 → claude-fable-5)

Flake-based NixOS configuration for a ThinkPad P14s Gen 6 (AMD), tracking nixos-unstable.

Highlights

  • Secure Boot via lanzaboote
  • Secrets: sops-nix with age — xray config, WireGuard, SSH keys, private routes/hosts; encrypted files stay out of the repo (only .example structure files are tracked), decrypted to /run/secrets at activation
  • Desktop: GNOME on Wayland, AMD GPU
  • Local LLMs: Ollama with ROCm (gfx1151) + Lemonade for XDNA2 NPU serving via nix-amd-ai
  • Networking: Xray VLESS+Reality with sing-box TUN, WireGuard, WWAN modem
  • Gaming: Steam with gamescope, declarative Flatpaks via nix-flatpak
  • Litecoin Core (MWEB): vendored package build, revived after removal from nixpkgs
  • Power: AMD P-State tuning, zram swap ahead of disk swap

Layout

flake.nix              # inputs and host definition
configuration.nix      # entry point, imports modules
modules/               # one module per concern (boot, desktop, ollama, xray, ...)
secrets/               # sops-encrypted (age) secrets, gitignored; .example files document structure

Usage

sudo nixos-rebuild switch --flake /etc/nixos#meow

Fresh install: restore secrets/ and the age key (/var/lib/sops-nix/key.txt) from out-of-band backup first.

TODO

  • Evaluate Home Manager