Built-in Presets

Presets are named compositions of units. Each preset defines a complete container environment for a specific workflow.

full-stack

The default preset. Covers web development, JS/TS projects, and general-purpose coding.

Units: dev-utils, node, bun, github-cli, doc-utils

sj claude --preset full-stack

full-stack-playwright

Extends full-stack with browser automation support.

Units: dev-utils, node, bun, github-cli, doc-utils, playwright

sj claude --preset full-stack-playwright

rust-wasm

WebAssembly development with Rust toolchain and wasm tooling.

Units: dev-utils, node, rust, wasm, github-cli

sj claude --preset rust-wasm

il2cpp-re

Reverse engineering toolkit for IL2CPP/Unity binaries. Includes Ghidra, JADX, .NET, and specialized RE tools.

Units: dev-utils, node (v20), github-cli, java, dotnet, rust, ghidra, jadx, il2cpp-tools

sj claude --preset il2cpp-re

Preset Resolution

Presets are resolved in priority order:

1. Per-repo — .sj/presets/<name>/preset.json
2. User — ~/.config/sj/presets/<name>/preset.json
3. Built-in — embedded in the binary

A per-repo preset with the same name as a built-in preset will override it for that project.

Preset Format

{
  "name": "my-preset",
  "units": [
    { "name": "dev-utils" },
    { "name": "node", "args": { "version": "20" } },
    { "name": "rust", "args": { "version": "nightly" } }
  ]
}

Each entry in units can include an args object to override the unit's default build arguments.