In .gitroot/plugins.yml of your root repository add:
1- url: https://gitroot.dev/releases/0.4.0/hop-0.0.2.wasm
2 checksum: sha256:f9eb2fb6380ad2fa9354fef634d0c36673b7877afab3f44614e7e2a2fb7940b2
Permit permit to run commands in an executor (dependanding on the forge configuration): bareMetalm bwrap, container or ssh.