MechaCat02 76926de369 fix(apply): bound the blast-radius up-walk; fix two stale comments
Second-review follow-ups on the ownership cleanups:

- The new `group_blast_radius` `app_chain` recursion walked app→root with no
  depth cap, unlike the `ancestors()` CTE it replaced (`WHERE c.depth < 64`).
  Add the same `ac.depth < 64` guard so a (should-be-impossible) cycle in
  `groups.parent_id` can't spin the recursive CTE unbounded and hang a plan.
- Drop the now-false "memoized per group" line from `group_blast_radius`'s doc
  (it is a single set-based query now).
- Correct the `PlanRequest` flatten comment: apply is deliberately NOT flattened
  (its pre-§7 wire was already `{bundle, …}`), so the two endpoints are
  asymmetric by history — the old comment wrongly claimed parity.

Verified: the blast-radius journey + ownership journeys still pass; the INNER
JOIN to `projects` is safe (owner_project FK is ON DELETE SET NULL, so a
non-NULL owner always references a live row — no dangling drop).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-07 19:21:03 +02:00

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.

Description
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Readme 7.9 MiB
Languages
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Svelte 6.2%
TypeScript 5.7%