EnterpriseCore
AI Suite.

The problem.

Small businesses bleed money on 15+ SaaS subscriptions — accounting, CRM, HR, project management, inventory — and none of them talk to each other. Your data lives across a dozen vendors who can change pricing, terms, or shutter overnight. Multi-tenant cloud apps are also the wrong shape for a 5-person consultancy that just wants something that works, offline, forever.

What I built.

• One installer, 130 modules. Finance, HR, CRM, projects, inventory, marketing, AI coding assistant — all in a single Electron + FastAPI desktop app.
• Offline-first. SQLite + local file storage. No cloud dependency. Works on a plane, in a tunnel, at a client site with bad wifi.
• Bring-your-own AI keys. Anthropic, OpenAI, or Ollama (local). Your prompts never leave your machine unless you point them at a cloud API.
• Three SKUs. Core / +EDU (11 student modules absorbed in v6) / +Verticals.
• 455 tests. Up from 289 before the v6 consolidation that absorbed LinguaBot, SiteForge, CornerTable, Deltadesh, Deltadutch, and 11 student apps as first-class modules.

How I shipped it.

1. Spec first. A one-page README per module. Wrote them all before any code.
2. Backend before frontend. FastAPI routes + SQLAlchemy models + alembic migrations, all idempotent, all tested.
3. Electron last. The Electron shell came in month 9, once the FastAPI app was already self-hosted and working in a browser.
4. Code-signed installer. NSIS + Windows code signing without admin elevation. Took longer than it should have.
5. v6 consolidation. Absorbed five older standalone products (LinguaBot, SiteForge, CornerTable, Deltadesh, Deltadutch) plus 11 student apps as modules — saving the maintenance burden and giving customers a single install path.

# Each module is a self-contained FastAPI router with
# its own SQLAlchemy models, alembic versions, and tests.

class Module(BaseModel):
    slug: str
    name: str
    version: str = "1.0.0"
    requires: list[str] = []
    routes: list[Route]

def register_all(app: FastAPI) -> int:
    # Loads + boots all 130 modules in dependency order.
    n = 0
    for mod in sorted(MODULES, key=topo_order):
        mod.mount(app); n += 1
    return n  # 130, every release.

Outcomes.