Add alertmanager config

Commit 8e66bea9c8 pushed by pinpox#169

Workflow check.yml

Check

4m2s

Check

Failure

Set up job5s

Check out repository code2s

https://github.com/nixbuild/nix-quick-install-action@v2710s

Calculate flake.lock hash0s

Restore and cache Nix store2m40s

Prepare cachix2s

Run flake checks29s

Complete job33s