internal/

Package codegen generates the code that connects a Tern app's routes to the runtime: tern.gen.go for the Go server, the client route manifest for Vite, and TypeScript types for every route.

Package dbtest opens the databases that Tern's database packages are tested against: a fresh SQLite file always, and PostgreSQL when TERN_TEST_POSTGRES holds a connection string (CI sets it).

Package formrules parses validation tags and checks submitted form values against them.

Package htmltext turns HTML into readable plain text, for the text part of emails.

Package i18n formats translated messages.

Package jsondiff computes small patches between two JSON values, so live components send what changed in a list instead of the whole list.

Package markdown renders Markdown with YAML front matter.

Package mcp is a small Model Context Protocol server over stdio: tools and resources, as JSON-RPC 2.0 messages, one per line.

Package native compiles the modules of an app's server build to Go, so pages render without the JavaScript engine (ADR 0011).

Package routes discovers Tern routes on the filesystem and matches URLs against them.

Package seal encrypts and authenticates small values, such as cookie contents, with AES-256-GCM.

Package ssr renders Svelte pages on the server by running the app's server bundle in embedded QuickJS VMs.

Package ui formats the Tern CLI's terminal output: colors, symbols, spinners and tables.

Package version reports the version of the Tern build.