better cache management

.github/workflows/lint.yml

@@ -26,6 +26,7 @@ jobs:
         if: always()
         env:
           REVIEWDOG_GITEA_API_TOKEN: ${{ secrets.GITEA_TOKEN }}
+          GITEA_ADDRESS: ${{ github.server_url }}
         run: |
           if [ "${{ github.event_name }}" = pull_request ]; then
             nix run -L .#ci -- lint-report gitea-pr-review "$RUNNER_TEMP/findings"

containers/server-n0/git.nix

@@ -163,10 +163,9 @@ in
             trusted-public-keys = [ "microvm.cachix.org-1:oXnBc6hRE3eX5rSYdRyMYXnfzcCxC7yKPTbZXALsqys=" ];
           };
 
-          nix.gc = {
-            automatic = true;
-            dates = "daily";
-            options = "--delete-older-than 14d";
+          nix.settings = {
+            min-free = 5 * 1024 * 1024 * 1024;
+            max-free = 10 * 1024 * 1024 * 1024;
           };
           # nix.optimise.automatic = true; - doesn't work with microvm.writableStoreOverlay