Initial replace with a generated composite action.

Note: Needs to restore some workflow tests, maybe unify into a shared script, integrate into spagehtti(?)

The version numbers in here don't exist, so also need to release magic-nix-cache binaries with a tag.

Author: grahamc

.envrc

@@ -1,5 +1 @@
-if ! has nix_direnv_version || ! nix_direnv_version 2.1.1; then
-  source_url "https://raw.githubusercontent.com/nix-community/nix-direnv/2.1.1/direnvrc" "sha256-b6qJ4r34rbE23yWjMqbmu3ia2z4b2wIlZUksBke/ol0="
-fi
-
-use_flake
+use flake

.eslintrc.json

@@ -1,8 +1 @@
-.direnv
-result*
-
-node_modules
-
-# magic-nix-cache
-creds.env
-creds.json
+upstream.json