This should add a full publish action for you. The only steps you need to take are to follow the instructions I left at the bottom of publish.yml to add a repository secret with a service worker from your CharlesE2 namespace on the Thunderstore. You should be able to just click here to go to the service workers page for your account: https://thunderstore.io/settings/teams/CharlesE2/service-accounts/
This should add a full publish action for you. The only steps you need to take are to follow the instructions I left at the bottom of publish.yml to add a repository secret with a service worker from your CharlesE2 namespace on the Thunderstore. You should be able to just click here to go to the service workers page for your account: https://thunderstore.io/settings/teams/CharlesE2/service-accounts/