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Forum post — public alpha announcement (C3)

Tier: Public
Status: Posted 2026-06-28 — forum topic/84 (Community policy, pinned 6 months).
Related: PUBLIC-ALPHA-ANNOUNCEMENT.md, community-forum-runbook.md §8

Paste the Title and Body below into a new topic in Community policy. Pin for 2–4 weeks optional. Record the topic URL in PUBLIC-ALPHA-ANNOUNCEMENT.md and flip runbook §11 C3.

Title​

Umbraculum public alpha — open-source toolset for workspace-shaped operational applications

Body (Discourse markdown)​

Today we are opening the Umbraculum monorepo, the umbraculum-toolset Cursor plugin pack, and the umbraculum-brochure marketing site repository as a public alpha (v0.0.1-alpha release).

What Umbraculum is. A toolset for building workspace-shaped operational applications — horizontal platform services (auth, workspaces, rendering, i18n) plus composable canonical modules (MRP, CRP, PIM, automation, and more) and a unified AI consultant with BYOK. Manufacturing is our stress test (brewery vertical configuration), not our identity.

What public alpha is — and is not.

  • Is: source visibility, contributor docs at docs.umbraculum.dev, MIT SDK packages on npm, local-install or marketplace Cursor plugins (marketplace pending review), a self-build path (docker compose up), and a committed partial OpenAPI catalog.
  • Is not: hosted-service GA, feature-complete ERP, or a promise that every module is production-ready. MRP/CRP ship as a read-only alpha proof; write workflows land in H1 2027.

Students and university experimentation. Clone, self-host, and build Tier 6 vertical prototypes in your own repo at no platform fee for learning. See Academic use and experimentation on the docs site.

Licensing (read this before you fork).

  • AGPLv3 — monorepo core (API, web app, modules, database schemas).
  • MIT — published SDK packages (@umbraculum/module-sdk, @umbraculum/ai-tool-sdk, @umbraculum/*-contracts, …).
  • Commercial dual license — optional for organizations that cannot use AGPLv3; see Licensing.

No CLA. Contributions use DCO sign-off only (CONTRIBUTING.md on GitHub).

How to start.

  1. Clone https://github.com/umbraculum-dev/umbraculum-dev.git
  2. Follow Getting started on the docs site
  3. Install the Cursor apparatus per CURSOR-PLUGINS (marketplace when listings are live; local install until then)
  4. Read Platform architecture and the living Roadmap

How to help without buying priority. Collaborate via issues and PRs; optional sponsorship for AI compute and maintainer time is welcome and does not buy votes, queue priority, or feature paywalls — see Support & sponsorship.

Links

ResourceURL
Sourcehttps://github.com/umbraculum-dev/umbraculum-dev
Releasehttps://github.com/umbraculum-dev/umbraculum-dev/releases/tag/v0.0.1-alpha
Toolset pluginshttps://github.com/umbraculum-dev/umbraculum-toolset
Brochure sourcehttps://github.com/umbraculum-dev/umbraculum-brochure
Documentationhttps://docs.umbraculum.dev/
Brochurehttps://umbraculum.dev/
Public demohttps://demo.umbraculum.dev/
Securityhttps://github.com/umbraculum-dev/umbraculum-dev/blob/master/SECURITY.md

Maintainer sign-off: Umbraculum maintainers · 2026-06-27 · toolset@umbraculum.dev

After posting​

  1. Paste topic URL into PUBLIC-ALPHA-ANNOUNCEMENT.md distribution checklist.
  2. Mark C3 ☑ in public-alpha-flip-day-runbook.md §11.
  3. Optional: enable Contabo Auto Backup on forum VPS (community-forum-runbook.md §10).