Submatter/apps/mcp-server/tsup.config.ts

import { defineConfig } from "tsup";

/** `yaml` uses dynamic require internally and breaks when inlined into ESM. */
const bundledDatabaseExternals = ["yaml"] as const;

export default defineConfig({
  entry: ["src/index.ts"],
  format: ["esm"],
  dts: true,
  // Bundle workspace packages into the output so the runtime image doesn't try
  // to resolve `@tasks/database` / `@tasks/shared` (which export raw .ts files)
  // at import time — Node 20 cannot load .ts. Third-party deps stay external
  // and are installed via the regular node_modules layer in the runtime image.
  noExternal: [/^@tasks\//],
  external: [...bundledDatabaseExternals],
  target: "node20",
  platform: "node",
  clean: true,
});