03 / The runtime

Ajo Engine

A focused JavaScript runtime for sealed Ajo applications.

The compiler prepares the application before it reaches the server. The runtime then loads its sealed bytecode with a declared set of capabilities. Built on QuickJS-NG, it provides the HTTP, SQLite, crypto and fetch surfaces Kit uses.

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Terminal

# Stage and seal the application.
pnpm exec kit build --compiler /path/to/ajo-toolchain/node_modules/.bin/ajo-engine-compiler

# Run it with the matching runtime.
NODE_ENV=production HOST=127.0.0.1 PORT=8080 APP_URL=http://localhost:8080 \
  /path/to/ajo-toolchain/node_modules/.bin/ajo-engine dist/ajo

A matching compiler and runtime pair

Precompiled bytecode with a closed module graph

Explicit runtime capabilities and filesystem roots

Part of the whole

Ajo Server supplies the host environment, TLS routing and deployment lifecycle around this runtime.

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