CLI Reference

The @gjsify/cli package ships the gjsify binary. Run it via npx @gjsify/cli <command> or add it as a dev dependency.

Tip: npx @gjsify/cli --help lists all commands and flags. The output ends with a Running on … line showing the active runtime — Running on Node.js v24.x.y when invoked via the Node bin, or Running on GJS 1.x.y (SpiderMonkey) when running the GJS bundle.

gjsify create

Scaffold a new GJSify project.

npx @gjsify/cli create my-app

Argument	Description	Default
[project-name]	Directory to create	my-gjs-app

Generates src/index.ts, a package.json with build/start/dev scripts, and a tsconfig.json. Internally delegates to @gjsify/create-app.

gjsify build

Compile and bundle with Rolldown (Vite 8’s production bundler). Automatically aliases Node.js and Web API imports to @gjsify/* equivalents for GJS.

npx @gjsify/cli build src/index.ts --outfile dist/index.js

Option	Values	Default	Description
[entryPoints..]	paths	src/index.ts	Positional entry points
--app	gjs | node | browser	gjs	Target runtime
--outfile, -o	path	from package.json	Output file
--outdir, -d	path	from package.json	Output directory (library mode)
--minify	bool	false	Minify the output
--globals	string	"auto"	Globals mode (see below)
--shebang	bool	false	Prepend a target-appropriate shebang to the outfile and chmod it 0o755: #!/usr/bin/env -S gjs -m for --app gjs, #!/usr/bin/env node for --app node. Applies to GJS and Node app builds with a single --outfile.
--watch, -w	bool	false	Watch source files and rebuild on change. Logs each rebuild with duration; SIGINT cleanly stops the watcher. Rejected with --library. Requires the npm rolldown engine — run under Node.
--verbose	bool	false	Show detected globals and build details

All build options

Option	Values	Default	Description
--format	iife | esm | cjs	auto	Override output format
--library	bool	false	Build as a reusable library
--reflection, -r	bool	false	Enable TypeScript runtime types via Deepkit
--console-shim	bool	true	Inject the GJS console shim. Disable with --no-console-shim
--exclude	glob[]	[]	Glob patterns to exclude from entry points and aliases
--log-level	silent | error | warning | info | debug | verbose	warning	Bundler log level
--external	name[]	[]	Module specifiers that should NOT be bundled — they remain as runtime imports. Repeatable; comma-separated values are split. Merged with the platform’s built-in externals.
--define	KEY=VALUE[]	[]	Bundler define pass-through. VALUE is a JS expression — string literals must be JSON-quoted (--define VERSION='"1.2.3"'). Repeatable. Merged with built-in defines like global: 'globalThis'.
--alias	FROM=TO[]	[]	Layered on top of the built-in alias map. Useful for stubbing heavy deps (--alias typedoc=@gjsify/empty). Repeatable.

For --app gjs, the target is firefox140 (SpiderMonkey 140) and gi://*, cairo, system and gettext are externalised. For --app node, the target is node24.

Bundling third-party CLIs that read their own package.json at load time

Tools like typedoc and prettier read their own package.json via Path.join(fileURLToPath(import.meta.url), '../../../package.json') during top-level evaluation. When bundled, import.meta.url resolves to the bundle file, not the original main, so the lookup escapes the package and crashes. Combine --external (so Node’s runtime resolver finds the package in node_modules) with --define for any build-time version constants the bundled code expects:

gjsify build src/cli.entry.ts --app node --outfile dist/cli.mjs \
  --define '__MY_VERSION__="1.0.0"' \
  --external typedoc,prettier,@inquirer/prompts,inquirer

--external is the right answer on Node. On GJS, gjsify run does not yet have a node_modules-style runtime resolver, so externalised packages fail with ImportError: Module not found. Bundling them is the only option on GJS today; the alternative is upstream switching to a --define-injected version constant.

package.json#gjsify config reference

The gjsify field in package.json (or .gjsifyrc.js / gjsify.config.mjs) controls bundler behaviour declaratively.

bundler — Rolldown options pass-through

bundler is a RolldownOptions subset. The orchestrator applies platform-specific defaults on top.

define placement: define belongs under bundler.transform.define, not at the top level of bundler. If you write bundler.define (a common mistake when flat-renaming the old esbuild key), gjsify auto-maps it to bundler.transform.define and emits a build-time warning. To suppress the warning, move it:

// ❌ silently wrong without the alias — now warned + auto-fixed
{ "gjsify": { "bundler": { "define": { "__APP_ID__": "\"org.example.App\"" } } } }

// ✓ canonical
{ "gjsify": { "bundler": { "transform": { "define": { "__APP_ID__": "\"org.example.App\"" } } } } }

loaders — custom extension → loader kind

Map of file extension (with leading .) to a loader kind. Rolldown does not classify unknown extensions natively; without a loader it tries to parse them as JS and fails.

{
  "gjsify": {
    "loaders": {
      ".glsl": "text",
      ".ui":   "text",
      ".asm":  "text",
      ".png":  "dataurl"
    }
  }
}

Kind	Output	Use case
'text'	export default "<file contents>"	GLSL shaders, GtkBuilder .ui XML, assembly source, etc.
'dataurl'	export default "data:<mime>;base64,<b64>"	Images for Excalibur ImageSource, any API that accepts a data: URL string

MIME inference for 'dataurl': .png → image/png, .jpg/.jpeg → image/jpeg, .gif → image/gif, .svg → image/svg+xml, .webp → image/webp, .wasm → application/wasm, all others → application/octet-stream.

Replaces the legacy esbuild.loader option — migration: esbuild: { loader: { '.png': 'dataurl', '.glsl': 'text' } } → loaders: { '.png': 'dataurl', '.glsl': 'text' }.

Globals

The default --globals auto detects which globals your code needs from the bundled output. No configuration needed for most projects.

Mode	Usage	Description
auto	--globals auto (default)	Automatic detection from bundled output
auto,<extras>	--globals auto,dom	Auto + explicit extras for hard-to-detect cases
explicit list	--globals fetch,Buffer	Fully explicit, no auto detection
none	--globals none	Disable globals injection

Groups: node (Buffer, process, URL, …), web (fetch, streams, crypto, …), dom (document, Image, navigator, …).

How auto detection works

The CLI runs an iterative multi-pass build:

1. Pass 1 bundles your code in memory (no globals injected). acorn parses the output and finds free identifiers (Buffer, fetch) plus host-object member expressions (globalThis.Buffer, self.Buffer).
2. Pass N injects the discovered globals and rebuilds. Newly injected modules can reference more globals — the loop repeats until the set stabilises (typically 2–3 iterations, capped at 5).
3. The final build uses the converged set.

Because detection runs on the tree-shaken bundle, isomorphic guards (typeof document !== 'undefined') never produce false positives.

Use --verbose to see what auto mode detected:

gjsify build src/index.ts -o dist/index.js --verbose
# [gjsify] --globals auto: converged after 2 iteration(s), 11 global(s):
#   AbortSignal, Buffer, HTMLElement, document, fetch, navigator, …

When auto can't see a global

The analyser cannot follow value-flow indirection — e.g. Excalibur stores globalThis in a variable and calls methods through it, hiding the access. Keep auto on and add extras:

# Auto + the entire DOM group
gjsify build src/gjs/gjs.ts -o dist/gjs.js --globals auto,dom

# Auto + specific identifiers
gjsify build src/index.ts -o dist/index.js --globals auto,matchMedia,FontFace

Extras are seeded into pass 1 so any code reachable only through them is also visible.

Known identifiers

Any identifier below can appear in --globals (or be detected automatically). Granular subpaths mean selecting Buffer does NOT also pull in process or URL.

Node.js core globals

Identifier(s)	Register subpath
Buffer, Blob, File	@gjsify/buffer/register
process	@gjsify/node-globals/register/process
setImmediate, clearImmediate	@gjsify/node-globals/register/timers
queueMicrotask	@gjsify/node-globals/register/microtask
structuredClone	@gjsify/node-globals/register/structured-clone
btoa, atob	@gjsify/node-globals/register/encoding
URL, URLSearchParams	@gjsify/node-globals/register/url

Fetch

Identifier(s)	Register subpath
fetch, Headers, Request, Response	fetch/register/fetch

Streams

Identifier(s)	Register subpath
ReadableStream	web-streams/register/readable
WritableStream	web-streams/register/writable
TransformStream	web-streams/register/transform
TextEncoderStream, TextDecoderStream	web-streams/register/text-streams
ByteLengthQueuingStrategy, CountQueuingStrategy	web-streams/register/queuing
CompressionStream, DecompressionStream	compression-streams/register

Crypto

Identifier(s)	Register subpath
crypto	webcrypto/register

Abort + Events

Identifier(s)	Register subpath
AbortController, AbortSignal	abort-controller/register
Event, EventTarget	dom-events/register/event-target
CustomEvent, MessageEvent, ErrorEvent, CloseEvent, ProgressEvent	dom-events/register/custom-events
UIEvent, MouseEvent, PointerEvent, KeyboardEvent, WheelEvent, FocusEvent	dom-events/register/ui-events
EventSource	eventsource/register
DOMException	dom-exception/register

Performance + FormData

Identifier(s)	Register subpath
performance, PerformanceObserver	@gjsify/web-globals/register/performance
FormData	@gjsify/web-globals/register/formdata

XHR / DOMParser / Audio / Gamepad (GJS-only)

Identifier(s)	Register subpath
XMLHttpRequest	@gjsify/xmlhttprequest/register
DOMParser	@gjsify/domparser/register
AudioContext, webkitAudioContext, Audio, HTMLAudioElement	@gjsify/webaudio/register
GamepadEvent	@gjsify/gamepad/register

WebRTC (GStreamer webrtcbin, GJS-only)

Identifier(s)	Register subpath
RTCPeerConnection, RTCSessionDescription, RTCIceCandidate, RTCPeerConnectionIceEvent	@gjsify/webrtc/register/peer-connection
RTCDataChannel, RTCDataChannelEvent	@gjsify/webrtc/register/data-channel
RTCError, RTCErrorEvent	@gjsify/webrtc/register/error
MediaStream, MediaStreamTrack, RTCTrackEvent	@gjsify/webrtc/register/media
MediaDevices (navigator.mediaDevices)	@gjsify/webrtc/register/media-devices

WebAssembly Promise APIs

Identifier(s)	Register subpath
WebAssembly (WebAssembly.compile, WebAssembly.instantiate, WebAssembly.validate, WebAssembly.compileStreaming, WebAssembly.instantiateStreaming)	webassembly/register/promise

DOM / browser-compat (GJS/GTK only)

Identifier(s)	Register subpath
document, HTMLElement	@gjsify/dom-elements/register/document
HTMLCanvasElement	@gjsify/dom-elements/register/canvas
Image, HTMLImageElement	@gjsify/dom-elements/register/image
MutationObserver, ResizeObserver, IntersectionObserver	@gjsify/dom-elements/register/observers
FontFace	@gjsify/dom-elements/register/font-face
matchMedia	@gjsify/dom-elements/register/match-media
location	@gjsify/dom-elements/register/location
navigator	@gjsify/dom-elements/register/navigator

Unknown identifiers are silently ignored. If a ReferenceError: X is not defined still happens, add X as an extra: --globals auto,X.

gjsify install

Install npm dependencies for a project (or globally with -g). Drop-in for npm install / yarn install. Uses a native install backend (@gjsify/semver + @gjsify/npm-registry + @gjsify/tar) — no Node or npm CLI at runtime.

gjsify install                  # full project install
gjsify install --immutable      # CI mode — install strictly from gjsify-lock.json
gjsify install lodash           # add lodash, save to dependencies
gjsify install -D vitest        # save to devDependencies
gjsify install -g @gjsify/cli   # global install under ~/.local/share/gjsify/global/

Option	Default	Description
[packages..]	—	Optional package specs. Omit for full project install.
-g, --global	false	Install into ~/.local/share/gjsify/global/ and symlink bins into ~/.local/bin/.
-D, --save-dev	false	Save to devDependencies.
--save-peer	false	Save to peerDependencies.
-O, --save-optional	false	Save to optionalDependencies.
--immutable	false	Refuse to update gjsify-lock.json; fail if it’s missing or stale. Equivalent to yarn --immutable / npm ci --frozen-lockfile.
--verbose	false	Per-package install log.

Resolver mirrors npm v3+ semantics: each (requester → dep → range) edge is checked against the ancestor node_modules chain; compatible placements are reused, conflicting ones are nested. Supports npm-style overrides and yarn-style resolutions in package.json. Lockfile schema is v2 (path-keyed packages map).

gjsify dlx

Run the GJS bundle of an npm-published package without persisting it in your project. Pattern follows npx / yarn dlx / pnpm dlx, but dlx here is strictly a GJS-bundle runner: it always invokes gjs -m <bundle> after resolving the package’s GJS entry. Packages without a GJS entry fail loudly.

gjsify dlx @gjsify/example-dom-canvas2d-fireworks
gjsify dlx @scope/pkg@1.2.3                    # version-pinned
gjsify dlx @scope/pkg my-bin -- --opt value    # pick a bin from gjsify.bin, forward args
gjsify dlx ./local/path                        # local dir (no install, no cache)

Option	Description
<spec>	Package spec (name, name@version, @scope/name@spec, or local path).
[binOrArg]	Bin name when gjsify.bin has multiple entries; otherwise treated as the first arg forwarded to the bundle.
[extraArgs..]	Extra args forwarded to gjs -m <bundle>.
--cache-max-age <minutes>	Cache TTL. Defaults to 7 days. Use 0 to bypass cache.
--registry <url>	npm registry override (writes a temp .npmrc in the cache dir).
--verbose	Pass --loglevel verbose to npm.

Cache layout: $XDG_CACHE_HOME/gjsify/dlx/<sha256>/. Cache-key is sha-256 over the sorted package specs and registries. Atomic symlink swap on first install means parallel dlx invocations of the same spec are safe.

package.json gjsify field

dlx (and the future gjsify install / gjsify showcase) read the package’s GJS entry from a top-level gjsify object:

{
  "name": "@gjsify/example-dom-canvas2d-fireworks",
  "main": "dist/node.js",        // optional Node entry
  "exports": { "./browser": "..." },
  "gjsify": {
    "main": "dist/gjs.js",       // GJS entry — used by `gjsify dlx <pkg>`
    "bin": {                     // optional: multiple GJS entries
      "fireworks": "dist/gjs.js"
    },
    "prebuilds": "prebuilds"     // existing convention for native prebuilds
  }
}

Resolution order:

1. user-supplied bin name + gjsify.bin[name] → that path
2. single-entry gjsify.bin → the only path (auto-pick)
3. gjsify.main → that path
4. fallback: top-level package.json#main → that path (advisory warning to add gjsify.main)
5. otherwise: hard-fail with a fix hint

Multi-bin packages without a chosen bin fail with dlx: package "X" defines multiple GJS bins — pass one of: a, b.

gjsify test

Build + run the package’s src/test.mts aggregator on GJS and Node and aggregate the results. Replaces the per-package build:test:{gjs,node} + test:{gjs,node} + test script boilerplate.

# Default: build + run on both runtimes, aggregate exit codes
npx @gjsify/cli test

# Only one runtime
npx @gjsify/cli test --runtime gjs
npx @gjsify/cli test --runtime node

# Skip building (assume bundles already exist)
npx @gjsify/cli test --no-build

# Force rebuild even if bundles look fresh
npx @gjsify/cli test --rebuild

Option	Default	Description
--runtime <gjs|node|all>	all	Which runtime(s) to build + run.
--entry <path>	gjsify.test.entry or src/test.mts	Test entry.
--outdir <path>	gjsify.test.outdir or dist/	Where to write test.{gjs,node}.mjs.
--rebuild	false	Always rebuild, even when outputs look fresh (mtime-based check).
--build	true	Build before running. --no-build skips when bundles already exist.
--verbose	false	Resolved entry/outdir + per-step timing.

package.json#gjsify.test configures defaults declaratively:

{
  "gjsify": {
    "test": {
      "entry": "src/test.mts",
      "outdir": "dist",
      "runtimes": ["gjs", "node"]
    }
  }
}

The test entry typically aggregates @gjsify/unit suites:

src/test.mts

import { run } from '@gjsify/unit';
import myFeature from './my-feature.spec.js';
import other from './other.spec.js';
run({ myFeature, other });

Output: per-runtime summary line, e.g. [gjsify test] ✅ gjs (412ms) ✅ node (88ms). Exit code is non-zero whenever any runtime build or run fails.

gjsify run

Run a built GJS bundle. Automatically sets LD_LIBRARY_PATH and GI_TYPELIB_PATH for native prebuilds.

npx @gjsify/cli run dist/index.js

Argument	Description
<file>	The GJS bundle to run
[args..]	Extra arguments passed through to gjs

Running without gjsify run

gjsify run is a convenience wrapper. Without native prebuilds, you can run gjs directly:

gjs -m dist/index.js

With native prebuilds, generate the environment:

eval $(npx @gjsify/cli info --export)
gjs -m dist/index.js

gjsify foreach

Run a workspace script across all (or filtered) workspaces. Drop-in for yarn workspaces foreach.

gjsify foreach build                          # run `build` in every workspace
gjsify foreach -p -t build                    # parallel + topological order
gjsify foreach --no-private build             # skip workspaces marked private:true
gjsify foreach --include '@gjsify/web-*' test # glob filter
gjsify foreach --exec -- npm publish --tag latest  # arbitrary command

Option	Default	Description
[script]	—	Script name to run; with --exec, the command to run.
[args..]	—	Extra arguments forwarded to each invocation.
-A, --all	false	Include workspaces declared as private: true.
-p, --parallel	false	Run workspaces in parallel (capped by --jobs).
-t, --topological	false	Wait for each workspace’s prod-deps to finish before starting it.
--topological-dev	false	Like --topological but also respects devDependencies.
--include <glob>	—	Repeatable; include workspaces matching the glob.
--exclude <glob>	—	Repeatable; exclude workspaces matching the glob.
--no-private	—	Skip private workspaces.
-j, --jobs <n>	cpu count	Max concurrent workspaces in --parallel mode.
--exec	false	Treat <script> [args..] as an arbitrary command (use -- <cmd> to forward flags).
-v, --verbose	false	Echo every spawned command.

gjsify workspace

Run a single script in a single workspace. Drop-in for yarn workspace <name> run <script>.

gjsify workspace @gjsify/cli build
gjsify workspace @gjsify/fetch test:gjs

Argument	Description
<name>	Workspace name (matches package.json#name).
<script>	Script name to run.
[args..]	Extra arguments forwarded to the script.

gjsify check

Run TypeScript type-checks (tsc --noEmit) across the current workspace. Symmetric peer of gjsify format / lint / fix.

npx @gjsify/cli check                              # default: workspace-wide, parallel
npx @gjsify/cli check --include '@gjsify/process'  # filter to one package
npx @gjsify/cli check --no-parallel --verbose      # sequential with per-workspace output

Behaviour:

• In a workspace root: walks every package whose package.json#scripts.check is defined (@girs/* always excluded), runs npm run check in each, aggregates exit codes. Parallel by default with os.cpus().length workers; --jobs N caps it, --no-parallel switches to sequential.
• In a single package (cwd inside a workspace package with a check script): runs that package’s check script directly. Useful for npm run check ergonomics from gjsify.

Exits with code 1 if any workspace’s check fails; 0 if all pass. With --no-parallel, exits with the first non-zero code; with --parallel (default), prints a summary of failed workspaces.

Option	Default	Description
--include <glob>	(all)	Repeatable. Only run in workspaces matching these glob patterns.
--exclude <glob>	@girs/*	Repeatable. Skip workspaces matching these glob patterns.
--parallel, -p	true	Run workspace checks in parallel. --no-parallel for sequential.
--jobs N, -j N	os.cpus().length	Max parallel workers when --parallel.
--verbose	false	Log per-workspace command before spawning.

gjsify system-check

Verify that required system dependencies are installed.

npx @gjsify/cli system-check

Reports an install command for your detected package manager when something is missing. Exits with code 1 if any required dependency is missing.

Note: Previously called gjsify check. The bare name was repurposed for workspace TypeScript checks (see above).

Required vs optional dependencies

Required — always checked:

• Build toolchain: gjs, pkg-config, meson, blueprint-compiler
• Foundational libraries: gtk4, libadwaita-1, libsoup-3.0, gobject-introspection-1.0

Optional — only checked if a corresponding @gjsify/* package is in your project:

Optional dep	Required by
libmanette-0.2	@gjsify/gamepad
gstreamer-1.0, gstreamer-app-1.0	@gjsify/webaudio
gstreamer-webrtc-1.0, gstreamer-sdp-1.0, libnice	@gjsify/webrtc
webkitgtk-6.0	@gjsify/iframe
gdk-pixbuf-2.0	@gjsify/dom-elements, @gjsify/canvas2d
pango, pangocairo, cairo	@gjsify/canvas2d
gwebgl (npm package)	@gjsify/webgl

JSON output

npx @gjsify/cli check --json

{
  "packageManager": "dnf",
  "deps": [
    {
      "id": "gjs",
      "name": "GJS",
      "found": true,
      "version": "1.86.0",
      "severity": "required"
    },
    {
      "id": "manette",
      "name": "libmanette",
      "found": false,
      "severity": "optional",
      "requiredBy": ["@gjsify/gamepad"]
    }
  ]
}

gjsify info

List native GJSify packages and show the LD_LIBRARY_PATH / GI_TYPELIB_PATH needed for gjs.

npx @gjsify/cli info dist/index.js
eval $(npx @gjsify/cli info --export)

Argument / Option	Description
[file]	Bundle path used in the generated example command
--export	Emit only shell export statements, suitable for eval

gjsify showcase

List or run the curated showcase applications bundled with the CLI.

npx @gjsify/cli showcase                  # list all
npx @gjsify/cli showcase three-geometry-teapot

Option	Default	Description
[name]	—	Showcase name to run. Omit to list available showcases
--list	false	Force list mode
--json	false	Output as JSON (list mode only)

gjsify storybook

Discover every *.story.ts in the project and launch the GTK/Adwaita component browser from @gjsify/storybook — a sidebar grouped by category, a live preview pane, and an auto-generated controls panel. No per-project storybook application to maintain.

gjsify storybook                       # discover src/**/*.story.ts and launch
gjsify storybook --stories packages    # scan a different directory
gjsify storybook --watch               # rebuild + relaunch on story change

Option	Default	Description
--stories <dir>	src or gjsify.storybook.stories	Directory scanned recursively for *.story.ts.
--app-id <id>	gjsify.storybook.applicationId or derived from the package name	GApplication id.
--title <text>	—	Window title.
--globals <value>	auto	Value for gjsify build --globals (use auto,dom for canvas/DOM stories).
--out <path>	node_modules/.cache/gjsify-storybook	Output bundle path.
--watch	false	Rebuild and relaunch when a story file changes.
--build-only	false	Build the bundle but do not launch it.

Configure defaults in package.json#gjsify.storybook (applicationId, title, stories, globals). With GJSIFY_DEVTOOLS=1, the storybook host also exposes the devtools control plane, so an agent can drive it via gjsify debug --profile storybook. See the Debugging & remote control guide.

gjsify debug

Launch an MCP↔devtools bridge for a running, devtools-enabled gjsify app (its org.gjsify.Devtools DBus control plane). An MCP client (e.g. Claude Code) uses this as its server command; the bridge speaks JSON-RPC on stdio and translates each tool call to the app’s DBus interface. Provided by @gjsify/devtools-mcp.

# Point an MCP client at it (.mcp.json):
#   { "mcpServers": { "my-app": { "command": "gjsify", "args": ["debug", "--bus-name", "org.example.App"] } } }

gjsify debug --bus-name org.example.App         # generic profile
gjsify debug --profile storybook                # storybook tools (list/open/set-arg/screenshot)
gjsify debug --build-only --out dist/bridge.gjs.mjs   # build once; point .mcp.json at the bundle

Option	Default	Description
--bus-name <name>	gjsify.devtools.busNameBase, or the storybook/browser app-id	App DBus base name.
--profile <kind>	auto	generic | storybook | browser | cdp. Auto: storybook if @gjsify/storybook is a dep, browser if @gjsify/devtools-browser is, cdp if @gjsify/devtools-cdp is, else generic.
--globals <value>	auto	Value for gjsify build --globals.
--out <path>	node_modules/.cache/gjsify-debug	Output bundle path.
--build-only	false	Build the bridge bundle but do not launch it (for a .mcp.json command pointing at the bundle).

MCP cleanliness: gjsify debug logs only to stderr — stdout is the JSON-RPC channel. The bridge resolves @gjsify/devtools-mcp from the consumer’s node_modules. Full workflow: Debugging & remote control guide.

gjsify browse

Launch the minimalist Adwaita web browser from @gjsify/devtools-browser, optionally pointed at a URL. With --devtools it exposes the same org.gjsify.Devtools control plane (browser profile), so an agent can navigate, screenshot the rendered page, eval JS, inspect elements, and read the DOM/network/accessibility trees over MCP — purpose-built for debugging gjsify-built web apps.

gjsify browse                              # open page:welcome
gjsify browse https://gnome.org            # open a URL
gjsify browse https://localhost:8080 --devtools   # + MCP control plane (drive via `gjsify debug --profile browser`)

Option	Default	Description
[url]	page:welcome	Initial URL (a page:* built-in page or https://…).
--app-id <id>	gjsify.browse.applicationId or derived from the package name	GApplication id.
--title <text>	—	Window title.
--globals <value>	auto,dom	Value for gjsify build --globals (WebKit/iframe need DOM globals).
--out <path>	node_modules/.cache/gjsify-browse	Output bundle path.
--devtools	false	Enable the MCP devtools control plane (sets GJSIFY_DEVTOOLS=1).
--inspector-port <n>	—	Enable WebKit’s remote inspector protocol on this port + the Cdp* deep-protocol methods (implies --devtools).
--build-only	false	Build the bundle but do not launch it.

The browser is built on @gjsify/iframe (a WebKit.WebView postMessage bridge). With --inspector-port, it also sets WEBKIT_INSPECTOR_HTTP_SERVER and exposes the @gjsify/devtools-cdp Cdp* methods (CdpDiscoverTargets / CdpConnect / CdpSend / CdpDrainEvents) over the control plane — the deep Runtime/DOM/CSS/Network/Console/Debugger protocol. See the Debugging & remote control guide for the agent workflow.

gjsify gresource

Compile a GResource XML descriptor into a binary .gresource bundle. Thin wrapper around glib-compile-resources — useful when you want to package UI templates and assets into the app bundle without pulling in meson/autotools.

npx @gjsify/cli gresource data/org.example.App.data.gresource.xml \
  --sourcedir data \
  --target dist/org.example.App.data.gresource

Option	Default	Description
<xml>	—	Path to the .gresource.xml descriptor (required)
--sourcedir	dirname(<xml>)	Directory containing the resource files referenced by <xml>
--target, -t	<xml-without-.xml> next to <xml>	Output .gresource file
--verbose	false	Print the underlying glib-compile-resources invocation

Requires glib-compile-resources (package: glib2-devel on Fedora, libglib2.0-dev-bin on Debian/Ubuntu).

See it in action: adwaita-package-builder showcase embeds style.css this way.

gjsify gsettings

Compile GSettings schema XML files (*.gschema.xml) into a binary gschemas.compiled. Thin wrapper around glib-compile-schemas.

npx @gjsify/cli gsettings data/schemas
npx @gjsify/cli gsettings data/schemas --targetdir dist/schemas

Option	Default	Description
<schemadir>	—	Directory containing *.gschema.xml files (required).
-t, --targetdir	<schemadir>	Directory to write gschemas.compiled into.
--strict	true	Pass --strict to glib-compile-schemas (warnings become errors). --no-strict to disable.
--verbose	false	Print the underlying glib-compile-schemas invocation.

Requires glib-compile-schemas (package: glib2-devel on Fedora, libglib2.0-dev-bin on Debian/Ubuntu).

gjsify gettext

Compile gettext .po files for GNOME apps. Wraps msgfmt with the common output shapes — per-language locale tree (.mo), metainfo template substitution (.xml), and two less-common formats (.desktop, .json).

# Compile to runtime .mo locale tree
npx @gjsify/cli gettext translations dist/locale --domain org.example.App

# Substitute a metainfo template via msgfmt --xml --template
npx @gjsify/cli gettext translations dist/metainfo \
  --domain org.example.App \
  --format xml \
  --metainfo data/metainfo/org.example.App.metainfo.xml.in

Option	Default	Description
<poDir>	—	Directory containing <lang>.po files (required)
<outDir>	—	Output directory (locale tree for --format=mo, plain dir otherwise) (required)
--domain	—	Text domain / application ID (required)
--format	mo	One of mo, xml, desktop, json
--metainfo	—	For --format=xml: path to the template (.metainfo.xml.in) used as msgfmt --template
--filename	<domain>.<ext>	Override the output filename
--remove-xml-comments	true	For --format=xml: strip XML comments from the compiled output
--verbose	false	Print each msgfmt invocation

Requires msgfmt (package: gettext).

See it in action: adwaita-package-builder showcase uses both --format mo (runtime .mo tree) and --format xml --metainfo (AppStream substitution).

Before running, gjsify showcase calls gjsify system-check to verify system dependencies.

gjsify flatpak

Subcommand group for shipping GJS apps and CLIs as Flatpaks. Eight subcommands:

Subcommand	Purpose
flatpak init	Scaffold the full Flathub-ready asset set: manifest JSON + MetaInfo XML + .desktop (apps only) + flathub.json
flatpak check	Run appstreamcli validate --strict + flatpak-builder-lint manifest locally
flatpak build	Wrap flatpak-builder with sensible defaults
flatpak deps	Wrap flatpak-node-generator to produce the offline npm cache
flatpak ci	Scaffold .github/workflows/flatpak.yml matching the Flathub action shape
flatpak sync-flathub	After cutting a release, sync the per-app flathub/<app-id> tracking-repo manifest to the new git tag + commit
flatpak diff	Compare the local git state to the per-app Flathub tracking-repo manifest; surface version drift
flatpak release	Cut a release end-to-end: chain init + check + tag + sync-flathub

End-to-end guides: Ship a GJS app as a Flatpak | Ship a CLI tool as a Flatpak.

gjsify flatpak init

Generate the full Flathub asset bundle from package.json#gjsify.flatpak.

# Default — GTK/Adwaita desktop app
npx @gjsify/cli flatpak init

# CLI tool — no .desktop, console-application MetaInfo, skip-icons-check
npx @gjsify/cli flatpak init --kind cli

Option	Default	Description
--app-id	gjsify.flatpak.appId or package.json#name	Reverse-DNS app id
--kind <app|cli>	app	Template kind. cli emits console-application MetaInfo + flathub.json with skip-icons-check: true, no .desktop.
--cli-only	false	Deprecated alias for --kind cli.
--runtime <gnome|freedesktop>	gnome	Runtime family. Both kinds default to GNOME because GJS bundles need GLib/GIO at runtime.
--runtime-version	50 (gnome) / 24.08 (freedesktop)	Runtime version
--manifest <path>	<app-id>.json	Manifest output path
--metainfo <path>	data/<app-id>.metainfo.xml.in	MetaInfo XML output path
--desktop <path>	data/<app-id>.desktop.in	.desktop output path (kind=app only)
--flathub-json <path>	flathub.json	flathub.json output path
--command	gjsify.flatpak.command or app id	Binary name in /app/bin
--sdk-extension <ext>	—	Repeatable; extra SDK extension (e.g. org.freedesktop.Sdk.Extension.node24)
--finish-arg <arg>	—	Repeatable; appended to default finish-args
--force	false	Overwrite existing outputs (default: skip-and-log)
--verbose	false	Print resolved fields before writing

Non-destructive contract: each output (manifest / metainfo / desktop / flathub.json) is independently checked for existence; existing files are skipped with a log line. Re-run with --force to overwrite. User edits to one file (e.g. a hand-tuned .desktop) don’t block re-running init to refresh the others.

Config gaps degrade gracefully: missing MetaInfo fields are reported with per-field hints pointing at the exact gjsify.flatpak.<key> to set. The manifest still writes; MetaInfo + .desktop are skipped until you fill the gaps and re-run. Full field list:

gjsify.flatpak.<key>	Required for	Notes
appId	both	Reverse-DNS.
kind	both	"app" (default) or "cli".
name	optional	Human-readable display name for <name> + .desktop Name=. Defaults to a friendly derivation of package.json#name — set explicitly when the npm name doesn’t match the display name (e.g. npm name learn6502 vs display name "Learn 6502 Assembly").
developer.id / developer.name	metainfo	AppStream OARS 1.1+ requires <developer id="…">.
developer.email	optional	Emits <email> inside <developer>.
developer.nameTranslatable	optional	Default false → emits translate="no". Set true for descriptive names.
summary	metainfo	≤80 chars, no trailing period.
summaryTranslatorHint	optional	Emits <!-- TRANSLATORS: ... --> before <summary>.
description	metainfo	String form (blank-line-split into <p>) or DescriptionBlock[] ({p, translatorHint?} paragraphs and {ul:[...], translatorHint?} bullet lists).
license.metadata	metainfo	SPDX id; defaults to CC0-1.0 when absent.
license.project	metainfo	SPDX id of the software project.
homepageUrl	metainfo	<url type="homepage">.
bugtrackerUrl / vcsBrowserUrl / donationUrl / translateUrl	optional	Extra <url> entries. translateUrl is the Weblate/Crowdin URL.
iconRemote	optional	<icon type="remote"> — useful for Flathub thumbnail before local SVG ships.
categories	metainfo (app) / desktop	Freedesktop Menu spec categories.
keywords	optional	Search keywords.
releases	metainfo	[{ version, date, description? }]. Flathub requires ≥1. description accepts the same string-or-block-array shape.
screenshots	optional (app)	[{ url, caption?, captionTranslatorHint?, environment?, type? }].
branding	optional (app)	{ accentLight, accentDark } hex colours.
icon	optional (app)	Path to scalable SVG; warning if missing.
contentRating	optional	OARS keyword string (default oars-1.1) or { type?, attributes? } with OARS keys (social-info, language-humor, …) → none|mild|moderate|intense.
kudos	optional	["ModernToolkit", "HiDpiIcon", "TouchscreenSupport", "UserDocs", ...] — Flathub-recognised quality markers.
provides.binaries	optional	Defaults to [command].
provides.mimetypes / provides.dbus	optional	Extra <mediatype> / <dbus> entries.
supports.controls	optional	["keyboard", "pointing", "touch", "gamepad", "tablet", "console", "vision"].
supports.internet	optional	"always" | "offline-only" | "first-run".
requires.displayLengthMin / recommends.displayLengthMin	optional	Minimum display length in pixels. Phone-portrait min ≈ 360, tablet recommendation ≈ 480.
requires.controls / recommends.controls	optional	Hard / soft control requirements.

For multilingual apps, every translatable string (summary, description paragraphs + list items, screenshot captions, release notes) supports a parallel translatorHint field that emits a <!-- TRANSLATORS: ... --> comment in the generated .metainfo.xml.in — xgettext / msgfmt --xml --template picks these up and forwards them to the .po files so contributors on Weblate / Crowdin see the context. See the flatpak-app guide → Rich AppStream features for a worked example.

gjsify flatpak check

Run Flathub linters locally — same checks Flathub’s PR CI runs.

npx @gjsify/cli flatpak check                              # auto-detect manifest
npx @gjsify/cli flatpak check eu.jumplink.Learn6502.json   # explicit manifest
npx @gjsify/cli flatpak check --repo repo                  # also lint a built repo

Option	Default	Description
[manifest]	auto	Manifest path; defaults to <app-id>.json or the single .json matching a manifest shape.
--metainfo <path>	data/<app-id>.metainfo.xml.in	MetaInfo to validate; skipped if missing.
--repo <path>	—	If set, also runs flatpak-builder-lint repo <path> (post-build).
--appstream	true	Toggle appstreamcli validate --strict. --no-appstream to skip.
--builder-lint	true	Toggle flatpak-builder-lint. --no-builder-lint to skip.
--verbose	false	Stream linter stdout/stderr through.

Requires appstreamcli and flatpak-builder-lint on PATH. Both ship inside the org.flatpak.Builder Flatpak — install via flatpak install -y flathub org.flatpak.Builder; check prints this hint on ENOENT. Exit code aggregates: non-zero if any linter fails or any required binary is missing.

gjsify flatpak build, deps, ci

See the flatpak-app guide for usage examples; flags are stable since v0.4.x.

gjsify flatpak sync-flathub

Sync the per-app flathub/<app-id> tracking-repo manifest to a new git tag + commit. Flathub publishes each app from a separate repo whose manifest pins the upstream tag + commit; after cutting a release in your source repo, this command updates that pin and (optionally) opens the PR.

# Use the latest local git tag + its commit; auto-resolves flathub-repo from appId
npx @gjsify/cli flatpak sync-flathub

# Explicit tag + commit
npx @gjsify/cli flatpak sync-flathub --version v0.6.6 --commit 1a2b3c4d…

# Show resolution without writing or invoking git/gh
npx @gjsify/cli flatpak sync-flathub --version v0.6.6 --dry-run

# Local clone + commit only — skip push + PR
npx @gjsify/cli flatpak sync-flathub --version v0.6.6 --no-pr

Option	Default	Description
--version <tag>	git describe --tags --abbrev=0 in cwd	Git tag to sync to.
--app-id <id>	gjsify.flatpak.appId	Reverse-DNS app id (used to locate the manifest in the flathub-repo).
--flathub-repo <owner/name>	gjsify.flatpak.flathubRepo or flathub/<app-id>	Tracking-repo.
--commit <sha>	git rev-list -n 1 <version> in cwd	Pin to this commit.
--branch <name>	update-to-<version>	Branch name in the flathub-repo.
--source-index <n>	first type: git source	Which modules[0].sources[] entry to update (for manifests with multiple sources).
--no-pr	open PR	Skip gh pr create, also skip git push (local commit only).
--dry-run	false	Report resolution + intended branch + commit, touch no files.
--verbose	false	Echo every git / gh invocation.

Workflow:

1. Clones (or updates) flathub/<app-id> into $XDG_CACHE_HOME/gjsify/flathub-sync/.
2. Surgically edits modules[0].sources[<i>] — sets tag + commit, injects an x-checker-data block if missing (so Flathub’s auto-update bot can pick up future releases).
3. Preserves the manifest’s original 2-space indent + key ordering.
4. Creates branch update-to-<version>, commits, pushes, opens a PR via gh pr create.

Requires git (always) and gh (unless --no-pr). Both surface install hints on ENOENT. Idempotent: re-running with the same --version is a no-op when the manifest is already pinned.

gjsify.flatpak.flathubRepo in package.json#gjsify.flatpak overrides the default flathub/<app-id> derivation for repos that don’t follow the convention.

gjsify flatpak diff

Compare the local git state against the per-app Flathub tracking-repo manifest and surface version drift before publishing.

# Fetch flathub manifest, compare local latest tag against pinned tag
npx @gjsify/cli flatpak diff

# Compare against an explicit version
npx @gjsify/cli flatpak diff --version v0.6.6

# Compare against a local file (offline / CI)
npx @gjsify/cli flatpak diff --against ./flathub/<app-id>.json

# Print the full flathub source entry
npx @gjsify/cli flatpak diff --detail

Option	Default	Description
--version <tag>	git describe --tags --abbrev=0 in cwd	Local version to compare against.
--app-id <id>	gjsify.flatpak.appId	Reverse-DNS app id.
--flathub-repo <owner/name>	gjsify.flatpak.flathubRepo or flathub/<app-id>	Tracking-repo to fetch from.
--against <path>	—	Read a local manifest instead of fetching.
--detail	false	Also print the full flathub manifest source entry.
--source-index <n>	first type: git source	Which modules[0].sources[] entry to inspect.
--verbose	false	Echo fetch URL + resolved values.

Exit 0 when the local tag matches the flathub-pinned tag; exit 1 on drift with a hint at the exact gjsify flatpak sync-flathub command that would fix it.

gjsify flatpak release

Cut a release end-to-end: chain flatpak init (regenerate assets) → flatpak check (lint locally) → git tag (+ push) → flatpak sync-flathub (open the Flathub PR). One command for the maintainer flow that otherwise spans four manual invocations.

# Full chain
npx @gjsify/cli flatpak release v0.6.6

# Show the plan without running anything
npx @gjsify/cli flatpak release v0.6.6 --dry-run

# Tag was already created
npx @gjsify/cli flatpak release v0.6.6 --skip-tag

Option	Default	Description
<version>	—	Required. Release tag, e.g. v0.6.6.
--skip-init	false	Skip the flatpak init --force regen step.
--skip-check	false	Skip the flatpak check linter step.
--skip-tag	false	Skip git tag + git push origin <version>.
--push-tag	true	Whether to push the created tag (only relevant without --skip-tag).
--flathub-repo <owner/name>	—	Override forwarded to sync-flathub.
--dry-run	false	Print the plan, take no action.
--verbose	false	Echo every sub-command invocation.

The orchestrator runs init + check before creating the tag — if either fails, no tag is created (the release is aborted, not half-released).

gjsify self-update

Refresh the installed @gjsify/cli to the latest release (or a pinned dist-tag).

gjsify self-update              # install latest
gjsify self-update --check      # diff only, exit 1 if outdated
gjsify self-update --force      # reinstall identical version
gjsify self-update --tag next   # install a specific dist-tag (or version)

Walks import.meta.url to find the CLI’s own package.json, fetches the matching dist-tag via @gjsify/npm-registry, then re-uses the install backend that powers gjsify install -g (handles transitive native prebuilds, lockfile, bin shims).

Only works for CLIs installed under ~/.local/share/gjsify/global/ (the install.mjs bootstrap or gjsify install -g). Installs from npm install -g land outside that prefix; self-update surfaces a warning pointing at the new bootstrap.

Option	Default	Description
--check	false	Compare current vs target without installing. Exit 0 if up-to-date, 1 if outdated.
--force	false	Reinstall even when target matches current.
--tag	latest	npm dist-tag or pinned version.

gjsify generate-installer

Scaffold an install.mjs for your own GJS-runnable npm package — your users get the same curl ... | gjs -m - install story as gjsify itself.

cd my-gjs-app
gjsify generate-installer
# → install.mjs written. Commit it.

# Optional flags:
gjsify generate-installer \
  --target @my-org/my-app \
  --bin-name my-app \
  --bootstrap-url https://example.com/cli.gjs.mjs \
  --output bin/install.mjs --force

The generated install.mjs is a verbatim copy of gjsify’s own root install.mjs with three constants substituted (DEFAULT_TARGET, DEFAULT_BIN_NAME, DEFAULT_BOOTSTRAP_URL). See the Distributing GJS apps guide for the full publication workflow.

Option	Default	Description
[target] (positional)	package.json#name	npm package to install.
--bin-name <name>	first key of gjsify.bin or bin	Bin name produced by the installer.
--bootstrap-url <url>	gjsify GH releases/latest/download/cli.gjs.mjs	Override the bootstrap bundle source.
--output <file>	install.mjs	Where to write the installer.
--force	false	Overwrite an existing file.

gjsify uninstall

Symmetric inverse of gjsify install -g. Removes a previously installed package tree from ~/.local/share/gjsify/global/node_modules/<pkg>/ plus any bin shims under ~/.local/bin/ that point into it.

gjsify uninstall -g <pkg>                # remove pkg and its bin shim(s)
gjsify uninstall -g <pkg> --dry-run      # show what would be removed
gjsify uninstall -g <pkg1> <pkg2>        # remove multiple packages

Scoped to --global only. Project-local removal (mirror of npm uninstall <pkg> without -g) requires rewriting package.json + refreshing the lockfile, which is a separate workstream.

gjsify pack

Produce an npm-compatible .tgz tarball for a workspace. Drop-in for npm pack. Always rewrites workspace:^/~/* deps to resolved version ranges so the published tarball is portable. Honors the files allowlist + .npmignore/.gitignore with the same precedence as npm.

gjsify pack                                # pack the current workspace
gjsify pack packages/infra/cli             # pack a specific workspace
gjsify pack --pack-destination dist        # write the .tgz somewhere else
gjsify pack --json                         # emit npm-pack-compatible metadata

Option	Default	Description
[path]	cwd	Workspace path to pack.
--pack-destination <dir>	workspace cwd	Where to write the tarball.
--json	false	Emit pack metadata as JSON on stdout (matches npm pack --json).
--dry-run	false	Compute everything but do not write the .tgz.

Auto-includes package.json, README*, LICENSE*, NOTICE*, main and bin entries even if they’re not in files.

gjsify publish

Pack + upload a workspace to its npm registry. Drop-in for npm publish. Uses gjsify pack under the hood (so the workspace:^ rewrite happens automatically). Authenticates by reading process.env.NPM_CONFIG_USERCONFIG first (where actions/setup-node@v6 writes the auth-token npmrc) with ~/.npmrc as fallback.

gjsify publish                                  # publish current workspace
gjsify publish packages/infra/cli --tag latest
gjsify publish --access public                  # required for first publish of scoped pkg
gjsify publish --access public --otp 123456     # first publish with 2FA OTP (Node-free bootstrap)
gjsify publish --tolerate-republish             # treat 409 conflict as success
gjsify publish --dry-run                        # pack only, don't PUT

Option	Default	Description
[path]	cwd	Workspace path to publish.
--tag <tag>	latest	npm dist-tag.
--access <kind>	—	public or restricted (required on first publish of scoped packages).
--otp <code>	—	npm 2FA one-time code; forwarded as the npm-otp HTTP header on the PUT request. Required for manual publishes from a 2FA-enabled npm account. If the registry responds with 401 OTP-required and --otp was not supplied: on an interactive TTY the CLI prompts once and retries; on a non-TTY it exits non-zero with an actionable message.
--tolerate-republish	false	Treat a 409 conflict (version already published) as success. Matches yarn --tolerate-republish.
--provenance	false	Recorded in payload but no signing happens (no sigstore signer yet).
--dry-run	false	Pack only, do not PUT.
--json	false	Emit publish metadata as JSON.

Combine with gjsify foreach to publish every workspace in one go:

gjsify foreach --no-private --exec -- gjsify publish --tag latest --access public

Option	Default	Description
<packages..> (positional)	—	One or more package names.
--global / -g	false	Required; removes from defaultGlobalLayout() paths.
--dry-run	false	Print “would remove” lines, touch no files.
--verbose	false	Surface inspection failures (rare).

Exits non-zero when nothing was removed (no matching install found).

gjsify format

Format JS/TS source files via oxfmt (oxc’s formatter). Dual-engine:

• Under GJS (the gjs -m cli.gjs.mjs bundle), gjsify prefers the @gjsify/oxfmt-native GI bridge — the full oxfmt CLI runs in-process, Node-free (config resolution, ignore handling, file walking, --write/--check/--list-different all included). Override with GJSIFY_OXFMT=npm (force the Node launcher) or GJSIFY_OXFMT=native (error instead of falling back when the prebuild is unavailable).
• On Node (or when the native prebuild is missing), gjsify resolves oxfmt’s npm package Node launcher from node_modules/oxfmt/bin/oxfmt and spawns it with the current Node executable. The per-platform native code ships as the @oxfmt/binding-<target> napi optionalDependency.

CSS/JSON formatting is not supported. oxfmt formats JS/TS (+TOML) only. The previous Biome toolchain formatted CSS and JSON too; that is intentionally dropped in the oxc migration and not replaced by another formatter.

gjsify format --init             # write recommended .oxlintrc.json + .oxfmtrc.json
gjsify format --write src/       # apply formatter in place
gjsify format --check src/       # CI mode — exit non-zero on drift
gjsify format src/               # report drift without writing (list-different)

Option	Default	Description
[paths..]	.	Files/directories to format.
--write	false	Apply changes in place.
--check	false	CI-mode: report drift + stats, exit non-zero (does not write).
--config-path <path>	walks up	Path to an .oxfmtrc.json. Default: nearest .oxfmtrc.json from cwd or workspace root.
--init	false	Write recommended .oxlintrc.json + .oxfmtrc.json into cwd (skips existing unless --force).
--force	false	Used with --init to overwrite existing config files.
--verbose	false	Echo the resolved oxfmt launcher + args before spawning.

With no --write/--check, gjsify format reports drift via oxfmt’s --list-different without modifying files.

Workspace-aware resolution — when run from inside a sub-workspace, gjsify walks up to the workspace root to find node_modules/oxfmt/bin/oxfmt. A single .oxfmtrc.json at the workspace root applies everywhere oxfmt discovers it.

Standalone projects — same shape, single .oxfmtrc.json at the project root.

Recommended config defaults

gjsify format --init writes two config files tuned for GJS/GNOME projects:

.oxfmtrc.json (formatter):

• 4-space indent (spaces, not tabs), single quotes, semicolons-always, trailing commas all, arrow parens always, printWidth 120, bracket spacing on (matches the gjsify codebase + GNOME Shell style guide).
• Excludes generated artifacts (dist, lib, cli.gjs.mjs, test.{gjs,node}.mjs), Flatpak build dirs, refs/ submodules, prebuilds, compiled .metainfo.xml.

.oxlintrc.json (linter):

• categories.correctness: "error" (oxlint’s correctness set) plus:
  • typescript/no-non-null-assertion: off — ! operator needed for @girs/* API surfaces
  • typescript/no-explicit-any: warn (not error) — as unknown as T chains in cross-runtime polyfills
  • typescript/consistent-type-imports: warn
  • unicorn/prefer-node-protocol: error — enforce node: import protocol
  • eslint/no-unused-vars: warn
• Same exclude set as the formatter config.

Errors when oxfmt is missing: prints [gjsify oxc] oxfmt not found. with gjsify install -D oxfmt as the install hint, exits 1.

gjsify lint

Run oxlint diagnostics. Default reports findings (exit non-zero); --fix applies safe fixes in place. oxlint is spawned via its Node launcher (node_modules/oxlint/bin/oxlint) so its JS-plugin host — including gjsify’s internal gjsify/register-class-order rule — is available.

gjsify lint              # lint all
gjsify lint src/         # lint specific paths
gjsify lint --fix        # apply safe fixes (skips unsafe)

Option	Default	Description
[paths..]	.	Files/directories to lint.
--fix	false	Apply safe lint fixes in place.
--config-path <path>	walks up	.oxlintrc.json path override.
--verbose	false	Echo resolved oxlint launcher + args.

Use gjsify fix for the combined format + safe-lint-fix pass.

Internal lint rule: gjsify/register-class-order

gjsify ships an internal oxlint JS plugin (@gjsify/oxlint-plugin-gjsify, not published to npm) with one rule, wired into the workspace .oxlintrc.json via jsPlugins. It flags static GObject metadata fields (GTypeName, Properties, InternalChildren, Signals, Template, CssName, …) declared after a static { GObject.registerClass(…) } block — where registerClass runs before the field is assigned, so the metadata is silently ignored — and autofixes by hoisting those fields above the static block. (GNOME/gjs#704, gjsify/ts-for-gir#410.)

gjsify fix

Combined fix pass: oxfmt --write (format JS/TS) followed by oxlint --fix (safe lint fixes). Different from gjsify system-check (which verifies system dependencies) and gjsify check (the tsc orchestrator).

gjsify fix               # default: format + apply all safe lint fixes
gjsify fix --no-write    # report only, don't modify

Option	Default	Description
[paths..]	.	Files/directories to process.
--write	true	Apply fixes. Pass --no-write to report only.
--config-path <path>	walks up	.oxlintrc.json / .oxfmtrc.json path override.
--verbose	false	Echo resolved oxc launchers + args.

gjsify upgrade

Drop-in replacement for yarn upgrade-interactive / npx npm-check-updates. Checks the npm registry for newer versions of declared dependencies and updates package.json accordingly. Interactive prompt by default; --latest / --minor / --patch switch to non-interactive bulk-update mode.

gjsify upgrade                          # interactive: pick which to upgrade
gjsify upgrade --latest                 # non-interactive: bump every dep to latest (allows major)
gjsify upgrade --minor                  # skip major bumps (semver-minor + patch only)
gjsify upgrade --patch                  # patches only
gjsify upgrade --latest --dry-run       # print plan, don't write
gjsify upgrade --filter '@gjsify,vite'  # narrow scope by substring
gjsify upgrade -y                       # interactive-all (no prompt, select everything)

Workspace-aware: workspace:, file:, link:, git:, git+, http(s):, npm:, *, latest ranges are skipped — those are not external npm dependencies. Range prefix is preserved (^1.2.3 → ^2.0.0, ~0.4.0 → ~0.5.0).

The registry URL is resolved from ~/.npmrc → <cwd>/.npmrc, with npm_config_registry env var overriding both. Scope-specific registries + auth tokens from .npmrc are honored.

Option	Default	Description
--latest	false	Non-interactive bulk-update — allows major bumps.
--minor	false	Non-interactive — semver-minor + patch only.
--patch	false	Non-interactive — semver-patch only.
--filter <substring>	—	Comma-separated list of substrings (case-insensitive) to match against package names.
--dry-run	false	Print upgrade plan, don’t write package.json.
--yes / -y	false	In interactive mode, select all candidates without prompting.
--cwd <path>	process.cwd()	Project directory.
--verbose	false	Print resolution details.

Output is a color-coded table (red=major, yellow=minor, green=patch, cyan=prerelease) listing every dependency with a newer version available. After write-back, gjsify install must be run to actually fetch the new versions.