I build open-source, product-shaped tools for learning, knowledge work, agentic teamwork, and trustworthy automation.
The visible layer is Rumble: products people can use. Underneath, Portal, Bolt, Wrench, and Gear are small sovereign tools — one identity across web and native, deterministic orchestration, inspection with evidence, and memory with provenance. Each does one thing well; together they stack.
| If you want to... | Start with | Status |
|---|---|---|
| see the public product surface | rumble-cos | usable |
| try the feed-to-knowledge pipeline | rumble-feed-mind | dojo |
| inspect the orchestration core | bolt-cos-matic | usable |
| explore DB/security evidence | wrench-db-inspect | dojo |
| see the multi-platform design system | portal-core | usable |
The product layer: things people can read, run, touch, or eventually use directly.
| Product | Purpose | Maturity |
|---|---|---|
| rumble-cos | education blog and public knowledge surface | usable |
| rumble-feed-mind | intelligent feed/watch pipeline | dojo |
| rumble-ai-practices | professional AI-practice training | dojo |
| rumble-lm | grounded learning sessions and facilitation | contract-first |
| rumble-canvas | product-conception workspace | contract-first |
| rumble-crew | agentic teamwork board | contract-first |
| rumble-note | local-first personal knowledge | contract-first |
maturity is honest, not aspirational: dojo = runs, still being documented; contract-first = designed and specified, not yet built; usable = credible for real use, operational maturity not claimed.
Small tools that keep Rumble products reliable without turning any product into a monolith.
| Tool | Role | Main repos |
|---|---|---|
| Portal | one design system, web and native | portal-core, portal-forge, portal-apple, portal-android |
| Bolt | safe orchestration: plans, gates, evidence | bolt-cos-matic, bolt-harness |
| Wrench | inspection, validation, reports | wrench-inspect, wrench-db-inspect, wrench-dioxus-lab |
| Gear | memory, ingestion, artifacts, release, provenance | gear-memory, gear-loader, gear-depot, gear-cable |
- Products first. Rumble is what people touch; the tools underneath exist to make it reliable.
- Determinism over magic. Reproducible outputs, no silent overwrites, no hidden state.
- No silent failures. Failure modes should be explicit, inspectable, and testable.
- Sovereign by default. Self-hostable, permissive OSS, no unnecessary vendor lock-in.
- Evidence over claims. Maturity, releases, and decisions point to tests, fixtures, CI, ADRs, or demos.
- LinkedIn — linkedin.com/in/constj
- Open to discussing sovereign/self-hosted AI, Rust tooling, agentic systems, and reliable software for regulated environments.
Building in the open. MIT · Rust · ADR-driven · deterministic. The process is the product.