Replaces the four <textarea> usages with a CodeMirror 6 editor that
brings, just by being a real editor: syntax highlighting, line
numbers, bracket matching, multi-cursor, proper undo/redo, and
search/replace (Ctrl+F / Ctrl+H). Plus a Rhai-aware autocomplete and
a "Format JSON" button on the test-invoke panels.
Per discussion, deliberately did NOT add: LSP, go-to-definition,
Rhai formatter (none exists), or anything else IDE-shaped. The
existing CodeEditor component is wired so swapping the language
extension later is a one-line change.
Lay of the land (from the research pass):
* No CodeMirror Rhai package exists on npm.
* No Rhai formatter exists anywhere.
* The Rhai authors publish a TextMate grammar at
rhaiscript/vscode-rhai (MPL-2.0). We don't load the full
grammar (would cost ~250KB of vscode-textmate + oniguruma);
we cite it as the source-of-truth for our keyword/operator
lists in a small custom StreamLanguage.
* rhaiscript/lsp exists but is experimental + unmaintained
since 2023; skipped.
Files:
* dashboard/src/lib/editor-theme.ts — CodeMirror theme +
HighlightStyle wired to the existing slate/sky palette so the
editor blends into the cards instead of looking transplanted.
* dashboard/src/lib/rhai-mode.ts — StreamLanguage tokenizer for
Rhai with the upstream grammar's keyword/operator lists, plus
a completion source pulling ctx.* / log::* from our SDK
contract suite (the authoritative list).
* dashboard/src/lib/CodeEditor.svelte — wraps EditorView with
two-way $bindable() value, language picker ('rhai' | 'json'),
placeholder, minHeight props. Guards against the update
listener echoing parent-driven changes back as edits.
* Replaces textareas in:
routes/+page.svelte — create form source
routes/scripts/[id]/+page.svelte — Edit tab source +
Test invoke body +
headers
* Format buttons next to the body/headers editors run
JSON.stringify(JSON.parse(value), null, 2); errors surface
inline next to the button without trashing the field.
Bundle:
* +~430KB to the CodeMirror chunk in dashboard build (~150KB
gzipped on the wire). Lazy-loaded — only fetched when a route
that uses CodeEditor renders.
* `npm install` clean, 0 vulnerabilities, `npm run check`
clean, `npm run build` clean.
No backend / API / SDK / schema / wire changes. No version bumps.
PiCloud
A lightweight, self-hosted, event-driven serverless compute platform. Upload a Rhai script, get an HTTP endpoint. Designed to run on a single modest server with no idle CPU cost, and to scale out to a small cluster when you need it.
Status: Phase 1 — MVP scaffolding in progress.
The authoritative design lives in
serverless_cloud_blueprint.md.
Why
Existing serverless platforms are either cloud-locked, heavyweight, or both. PiCloud aims for the opposite end of the spectrum: one binary, one database, one reverse proxy — running on hardware you already own.
Architecture (one paragraph)
PiCloud splits into three logical services — manager (control plane: scripts, schedules, dashboard), orchestrator (per-node event ingress and dispatch), and executor (per-node Rhai sandbox) — each backed by a *-core Rust library. In MVP they run in a single process; in cluster mode they run as three binaries with one manager and one orchestrator + executor per node. Caddy fronts everything; PostgreSQL is the single source of truth.
See CLAUDE.md for working notes and serverless_cloud_blueprint.md for the full design.
Quick Start
Coming as scaffolding lands. For now:
# Rust toolchain (pinned via rust-toolchain.toml)
cargo check --workspace
# Run the all-in-one MVP binary (once main.rs is wired up)
cargo run -p picloud
Repository Layout
crates/
shared/ cross-cutting types
executor-core/ Rhai engine + sandbox
orchestrator-core/ event ingress, dispatch
manager-core/ control plane
picloud/ MVP all-in-one binary
picloud-{manager,orchestrator,executor}/ cluster-mode binaries (skeleton)
dashboard/ SvelteKit
caddy/ Caddyfile
docker/ Dockerfiles
docs/
git-workflow.md Trunk-based workflow
Contributing
See docs/git-workflow.md for the branching and commit conventions. TL;DR: trunk-based, short-lived branches, Conventional Commits, no force-pushing main.
License
TBD.