upgrade-flake

Update flake.lock to get latest packages within the current NixOS release - runs nix flake update, checks build, and optionally applies

Stars 163

Forks 31

Install this agent skill to your Project

npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/development/upgrade-flake-richardgill-nix

SKILL.md

Upgrade Flake Inputs

Update flake.lock to pull in the latest commits from all flake inputs. This gets you newer package versions without changing NixOS release channels.

What this does

Updates all inputs to their latest commits (nixpkgs, home-manager, etc.)
Does NOT change release channels (stays on same NixOS version)
Safe operation - can always rollback

Process

Update the lock file
bash
```
just update
```
This runs nix flake update and updates flake.lock.
Build and verify (safe dry-run)
bash
```
just check
```
Builds all configurations without applying. If this fails, fix errors before proceeding.
Apply the update (when ready)
bash
```
just switch
```
Verify services are running
bash
```
systemctl status docker tailscaled
```

Rollback if needed

When you're done echo out the instructions to:

bash

# Revert to previous system generation
sudo nixos-rebuild switch --rollback

# Revert flake.lock to previous state
git checkout flake.lock

Tips

show the user what ch git diff flake.lock to see what changed before applying
Old boot entries remain available for rollback until garbage collected

$ARGUMENTS