Stacks declare host toolchains (uv/pnpm/node/hugo/deno/psql) that can drift
from what's installed and, worse, from what's on a running service's PATH.
Make those dependencies first-class and visible.
Model (core):
- stacks.ToolRequirement + StackHandler.tools declare each stack's toolchains
(command, purpose, phase, install_hint); tools_for() is the single source.
- relations synthesizes them as `kind: tool` requirements so functional?/graph
account for them; checked runtime-env-aware (run-phase tools of a systemd
service are probed against the service's PATH, not the shell) via a shared
generators.systemd.runtime_path helper the unit generator also uses, so the
checker can't drift from the generator. hint_for() makes every unmet
requirement actionable.
- stack_status: the derived per-stack health the CLI/API/UI all render.
- config: add ~/.deno/bin to USER_TOOL_PATH_DIRS so deno (supabase edge fns)
is found by services and the check, same as ~/.local/bin and the pnpm dirs.
Surfaces:
- castle stack list|info (new resource) + GET /stacks/status, /stacks/{name}
(GET /stacks stays a bare name list for the create-form select).
- castle doctor gains a "Stacks & dependencies" section (FAIL for an enabled
deployment's missing tool, WARN otherwise, unused stacks skipped).
- castle apply preflight warns (advisory, like _acme_preflight) when a tool is
missing where a service runs; ConvergePanel renders those warnings.
- Dashboard Stacks page: per-stack tool checklist with versions + copyable
install hints, program links, and verb chips.
Tests: relations (drift + hints), doctor (ok/fail/skip), /stacks endpoints.
React + TypeScript + Vite
This template provides a minimal setup to get React working in Vite with HMR and some ESLint rules.
Currently, two official plugins are available:
- @vitejs/plugin-react uses Babel (or oxc when used in rolldown-vite) for Fast Refresh
- @vitejs/plugin-react-swc uses SWC for Fast Refresh
React Compiler
The React Compiler is not enabled on this template because of its impact on dev & build performances. To add it, see this documentation.
Expanding the ESLint configuration
If you are developing a production application, we recommend updating the configuration to enable type-aware lint rules:
export default defineConfig([
globalIgnores(['dist']),
{
files: ['**/*.{ts,tsx}'],
extends: [
// Other configs...
// Remove tseslint.configs.recommended and replace with this
tseslint.configs.recommendedTypeChecked,
// Alternatively, use this for stricter rules
tseslint.configs.strictTypeChecked,
// Optionally, add this for stylistic rules
tseslint.configs.stylisticTypeChecked,
// Other configs...
],
languageOptions: {
parserOptions: {
project: ['./tsconfig.node.json', './tsconfig.app.json'],
tsconfigRootDir: import.meta.dirname,
},
// other options...
},
},
])
You can also install eslint-plugin-react-x and eslint-plugin-react-dom for React-specific lint rules:
// eslint.config.js
import reactX from 'eslint-plugin-react-x'
import reactDom from 'eslint-plugin-react-dom'
export default defineConfig([
globalIgnores(['dist']),
{
files: ['**/*.{ts,tsx}'],
extends: [
// Other configs...
// Enable lint rules for React
reactX.configs['recommended-typescript'],
// Enable lint rules for React DOM
reactDom.configs.recommended,
],
languageOptions: {
parserOptions: {
project: ['./tsconfig.node.json', './tsconfig.app.json'],
tsconfigRootDir: import.meta.dirname,
},
// other options...
},
},
])