Local publishing
Local publishing is for an interactive developer who has the production credentials on their machine and wants clear guidance from build to provider upload.
The guided flow should:
show required and recommended release metadata,
let the developer enter paths to signing and provider files,
write stable non-secret settings to fission.toml,
keep secrets in environment variables or local files outside the repository,
capture or validate screenshots,
upload to the selected provider,
show provider receipts and next actions.
Use local publishing to prove a release process once. Then encode the same non-interactive steps in CI.