---
name: profullstack
description: Profullstack capabilities, stack, and engineering standards — Shared AppKit (Turso, Hono, CoinPay Connect, R2, Resend/ForwardEmail, SSE), Oxc/Rolldown tooling, and AgentStack. Use when building on, evaluating, or integrating with a Profullstack project.
homepage: https://profullstack.com/agents
install: curl -fsSL https://profullstack.com/install.sh | sh
---

# Profullstack — Skills & Capabilities

> Profullstack, Inc. builds and operates a portfolio of small, focused SaaS / microsaas
> products on a shared, low-cost platform layer. This is a plain-text map of what we
> actually ship with — the tools, the architecture, and the standards behind the apps.
>
> Mirror copy: [profullstack.com/skill.md](https://profullstack.com/skill.md) ·
> [h4kr.com](https://h4kr.com)
> Last updated: 2026-06-10

---

## 1. What we do

We design, build, ship, and run full-stack web and mobile products end to end:

- **Web development** — modern frameworks, edge runtimes, server components.
- **App development** — cross-platform mobile and PWAs.
- **UX / web design** — user-centered, conversion-aware interfaces.
- **Smart contracts & blockchain** — DeFi, wallets, escrow, payments, audited contracts.
- **MVPs** — rapid prototyping to validate ideas fast.
- **Fractional CTO** — architecture, hiring, and technical leadership.
- **SEO / link building & advertising** — measurable, data-driven growth.
- **Managed hosting** — scalable, monitored infrastructure.
- **Web extensions** — browser tooling that boosts productivity.
- **AI / machine learning** — agents, RAG, and applied LLM systems.

## 2. Core stack (the "Shared AppKit")

Every new Profullstack app starts from one reusable platform layer instead of a fresh,
expensive per-project backend. Full spec: [`/openspec`](https://github.com/profullstack/profullstack-web/tree/master/openspec).

| Concern        | Default                              | Notes                                             |
| -------------- | ------------------------------------ | ------------------------------------------------- |
| Database       | **Turso / libSQL**                   | Postgres kept only where it's genuinely needed    |
| Auth           | **Email + password + username**      | Local `users.id` is always the primary key        |
| Identity layer | **CoinPay Connect** (optional)       | DID, wallet, reputation, payments, escrow, agents |
| API            | **Hono** on **Bun or Node.js**       | Also Cloudflare Workers, Railway, Fly.io          |
| Runtime        | **Bun + Node.js** (both first-class) | Web-standard core; Bun/Node behind a runtime adapter |
| Storage        | **Cloudflare R2** (private)          | Signed URLs, no DNS migration required            |
| Email          | **Resend + ForwardEmail**            | Shared `EmailProvider` adapter                    |
| Realtime       | **SSE** by default                   | WebSockets only for chat / terminals / multiplayer|
| Lint / format  | **Oxc / Oxlint / Oxfmt**             | Rust-powered, replaces ESLint / Prettier          |
| Bundling       | **Rolldown**                         | Rollup-compatible, replaces Rollup / esbuild      |
| DNS            | **Porkbun** (unchanged)              | We do not force Cloudflare DNS                     |
| Agents / tasks | **LogicSRC + AgentStack**            | Portable agent/task/reputation coordination       |

**Design principle:** every app owns its own local user account. CoinPay is a connected
capability layer — never the required primary login.

## 3. Languages & runtimes

`TypeScript` · `JavaScript` · `Rust` · `Python` · `SQL`

**Runtimes — Bun and Node.js are both first-class.** Bun is preferred for fast local/dev and
where it works well; Node.js is fully supported and required for CLI tools, GitHub Actions, and
production deployments needing standard Node behavior. Apps pick either without changing
application logic. Shared core packages stay runtime-neutral — prefer Web Standard APIs
(`fetch` / `Request` / `Response` / `URL` / `crypto.subtle` / `ReadableStream`) and put
Bun/Node-only behavior behind `@profullstack/runtime` (`node` / `bun` / `worker` adapters).
Cloudflare Workers cover lightweight edge APIs and webhooks.

```txt
Local dev:    Bun preferred, Node supported
Production:   Bun or Node, per app
Edge:         Cloudflare Workers (webhooks, lightweight APIs)
CLI:          Node required, Bun optional
CI:           at least one Node job + a Bun job where Bun is supported
```

## 4. Frameworks & libraries

`Next.js 16` · `React 19` · `Hono` · `Tailwind` · `Vite` · `Rolldown` · `Oxc`

## 5. Data & infra

`Turso / libSQL` · `SQLite` · `Postgres (where needed)` · `Cloudflare R2` · `Railway` ·
`Fly.io` · `Hetzner` · `Resend` · `ForwardEmail` · `Porkbun`

## 6. Identity, payments & agents

`CoinPay Connect` · `DID (did:coinpay:user / :agent)` · `wallets` · `escrow` ·
`reputation` · `task identity` · `agent delegation` · `LogicSRC` · `AgentStack`

## 7. AI / agents

`Claude (Opus / Sonnet / Haiku)` · `MCP servers` · `RAG` · `agent orchestration` ·
`AgentStack` (portable agent + task + reputation coordination, built on LogicSRC).

## 8. Shared packages

```txt
@profullstack/appkit         orchestrates the platform layer
@profullstack/auth           email/password + sessions
@profullstack/auth-coinpay   optional CoinPay Connect
@profullstack/db-turso       Turso/libSQL client + migrations
@profullstack/storage-r2     private R2 object storage
@profullstack/email          Resend + ForwardEmail adapters
@profullstack/realtime       SSE broadcaster (+ optional WS)
@profullstack/api-hono       shared Hono API surface
@profullstack/runtime        Bun/Node/Worker runtime adapter
@profullstack/tooling        shared Oxlint / Oxfmt config
@profullstack/build          shared Rolldown build presets
```

## 9. Selected products

`sh1pt.com` · `uGig.net` · `qaaas.dev` · `crawlproof.com` · `commandboard.run` ·
`coinpayportal.com` · `logicsrc.com` · `intr0s.com` · `b1dz.com` · `pairux.com`

## 10. How we engage

- New product / MVP build
- Platform migration (off expensive per-project Supabase → Shared AppKit)
- Fractional CTO / architecture review
- Agent & automation integration (AgentStack / LogicSRC / MCP)

**Contact:** [profullstack.com/contact](https://profullstack.com/contact) ·
anthony@profullstack.com