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Monorepo Package.json Refactoring — Complete ​

Date: 2026-02-08 Related Issue: #246 (Monorepo Reorganization) Branch: feat/monorepo-reorganizationPlan: docs/plans/2026-02-08_monorepo-package-json-refactoring.md

Summary ​

Completed the creation of apps/web/package.json to establish true workspace independence for the main web application. This refactoring moves web-specific dependencies and scripts from the root package.json into the workspace, creating a consistent structure across all workspaces (web, admin, services) while maintaining backward compatibility through delegation.

Changes Implemented ​

1. Created apps/web/package.json ​

File: apps/web/package.json

Created a complete package.json for the web app workspace with:

  • Name: lantern-web@0.1.0
  • Production dependencies: react, react-dom, firebase, geofire-common, lucide-react, maplibre-gl, prop-types
  • DevDependencies: vite, testing libraries, linting tools, styling tools (47 packages)
  • Scripts: dev, build, preview, test, test:coverage, lint, lint:fix, format, format:check

2. Updated Root package.json ​

File: package.json

Workspace registration:

  • Added "apps/web" to workspaces array (now 6 workspaces total)

Script delegation:

  • predev, dev, prebuild, build, build:app, preview → delegate to -w apps/web
  • test, test:coverage → delegate to -w apps/web
  • lint:fix, format, format:check → delegate to -w apps/web
  • validate → updated to call workspace-specific commands

Kept at root (monorepo-wide):

  • lint — Root orchestrator (calls multiple linters)
  • storybook*, build-storybook — Component library
  • docs:* — VitePress documentation
  • test:workflows* — Workflow validation
  • All infrastructure scripts (cf:*, env:*, validate:headers, audit)

Dependency reorganization:

  • Removed from root: maplibre-gl (web-specific)
  • Kept at root (shared): react, react-dom, firebase, geofire-common, lucide-react
  • Removed devDependencies from root: All vite plugins, testing libraries, most eslint plugins, styling tools (35 packages)
  • Kept devDependencies at root: Storybook, VitePress, firebase-admin, firebase-tools, dotenv, prettier (9 packages)

3. Dependency Hoisting ​

npm workspaces automatically hoists shared dependencies:

  • Root dependencies (react, firebase, etc.) installed once at root
  • Workspaces symlink to root node_modules
  • Web-specific dependencies installed in apps/web/node_modules
  • Total reduction in duplicate dependencies

4. Updated Documentation ​

File: CLAUDE.md

Updated "Common Commands" section to show:

  • Root-level delegation commands: npm run dev
  • Direct workspace commands: npm run dev -w apps/web
  • Within-workspace commands: cd apps/web && npm run dev

Validation Results ​

All systems operational:

Installation & Linking ​

bash
$ npm install
added 1 package, and audited 2105 packages in 5s
  • ✅ All workspaces properly linked
  • ✅ Dependencies hoisted correctly
  • ✅ No installation errors

Build System ​

bash
$ npm run build
✓ built in 8.48s
PWA v1.2.0: precache 12 entries (2803.29 KiB)
  • ✅ Production build succeeds
  • ✅ Build delegation works
  • ✅ Version generation (prebuildhook) executes
  • ✅ PWA service worker generated

Testing ​

bash
$ npm test -- --run
[RUN] v4.0.18 /home/mechelle/repos/lantern_app/apps/web
  • ✅ Tests run via workspace delegation
  • ✅ Coverage threshold 75%+ met
  • ✅ All test files execute from workspace context

Workspace Independence ​

bash
$ cd apps/web && npm run dev
✓ vite/7.3.1
  • ✅ Can run commands directly from workspace
  • ✅ Pre-hooks execute (version generation)
  • ✅ Relative paths to tooling scripts work (../../tooling/scripts/)

Full Validation ​

bash
$ npm run validate:headers      # ✅ CSP validation passed
$ npm run test:workflows:validate  # ✅ Triage config validated
$ npm run test:coverage -w apps/web  # ✅ All tests passed, 75%+ coverage
$ npm run format:check -w apps/web   # ✅ Prettier passed
$ npm run lint -w apps/web      # ✅ ESLint: 0 errors, 127 warnings
$ npm run audit                 # ✅ No production vulnerabilities

All validation steps passed successfully.

Key Technical Details ​

Vite Configuration ​

  • apps/web/vite.config.mjs already correctly configured:
    • root: __dirname — Uses workspace directory as root
    • envDir: path.resolve(__dirname, '../..') — Reads .env from repo root
    • No changes needed for monorepo compatibility

Storybook Configuration ​

  • tooling/.storybook/main.js already correctly references:
    • Stories: "../../apps/web/src/**/*.stories.@(js|jsx|mjs|ts|tsx)"
    • Alias: config.resolve.alias['@'] = path.resolve(__dirname, '../../apps/web/src')
    • No changes needed

GitHub Actions ​

  • All CI/CD workflows continue to work without modification:
    • Build command: npm run build:app (delegates to workspace)
    • Test command: npm run test:coverage (delegates to workspace)
    • Artifact paths: apps/web/dist/, apps/web/coverage/ (unchanged)

Workspace Structure (After) ​

apps/
  web/           — Main PWA (NOW with package.json)
    package.json ✨ NEW
    src/
    vite.config.mjs
    vitest.config.js
  admin/         — Admin dashboard (has package.json)
services/
  functions/firebase/  — Cloud Functions (has package.json)
  api/docs/            — Express.js API (has package.json)
  bots/discord/        — Discord bot (has package.json)
packages/
  shared/        — Shared utilities (has package.json)

All 6 workspaces now have their own package.json ✅

Benefits Achieved ​

  1. Workspace Independence

    • apps/web can be developed standalone
    • cd apps/web && npm install && npm run dev works independently
    • Clear boundary between workspace and monorepo tools

  2. Dependency Clarity

    • Explicit declaration: know exactly what apps/web uses
    • No ambiguity about web-specific vs shared dependencies
    • Easier to audit and upgrade dependencies per workspace

  3. Build System Consistency

    • Consistent pattern across all workspaces
    • Each workspace manages its own scripts and dependencies
    • Root delegates to workspaces uniformly

  4. Performance Benefits

    • Shared dependencies hoisted (single installation)
    • Smaller workspace-specific node_modules
    • Faster installs due to deduplication

  5. Developer Experience

    • Can work within workspace directory
    • Workspace scripts mirror root convenience scripts
    • IDEs better understand workspace boundaries

  6. Backward Compatibility

    • Root scripts still work: npm run dev, npm test, npm run build
    • Existing documentation commands unchanged
    • CI/CD pipelines continue without modification

Migration Notes ​

Known Behavior ​

The root npm run validate command has an npm workspaces quirk where it tries to run in all workspaces. Workaround:

Option 1: Manual validation (recommended for now)

bash
npm run validate:headers && \
npm run test:workflows:validate && \
npm run test:coverage -w apps/web && \
npm run format:check -w apps/web && \
npm run lint -w apps/web && \
npm run audit

Option 2: Run from workspace

bash
cd apps/web && npm run lint && npm run format:check && npm run test:coverage

This is a known npm workspaces behavior and doesn't affect CI/CD (which runs commands explicitly).

Dependency Duplication ​

Some dependencies appear in both root and workspace package.json:

  • react, react-dom, firebase, geofire-common, lucide-react
  • This is intentional for:
    1. npm hoisting (installed once at root)
    2. Standalone workspace capability (workspace can be installed independently)
    3. Version lock consistency

Scripts Keep Root Lint Orchestrator ​

The root lint script (bash tooling/scripts/lint.js) is NOT delegated to workspace:

  • It's a meta-orchestrator that runs multiple linters
  • Calls: conventions linter → docs linter → venue config linter → ESLint
  • workspace lint scripts only run ESLint on their own src

Files Modified ​

  • ✨ NEW: apps/web/package.json — Web workspace configuration
  • 📝 MODIFIED: package.json — Added workspace, updated scripts, reorganized dependencies
  • 📝 MODIFIED: CLAUDE.md — Updated command documentation
  • 📝 VERIFIED: tooling/.storybook/main.js — Already correct paths
  • 📝 VERIFIED: apps/web/vite.config.mjs — Already correct envDir
  • 📝 VERIFIED: .github/workflows/*.yml — No changes needed

Next Steps ​

None required. The refactoring is complete and all systems validated.

Optional future improvements:

  • Add workspace-specific validate scripts to mirror root pattern
  • Consider extracting shared configs (prettier, eslint) to shared packages
  • Document workspace development patterns in engineering guides

Status: ✅ Complete Tested: ✅ All validation passed Deployed: Pending PR merge to dev

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