Selio
Selio is a PIM (Product Information Management) product aimed at second-hand and vintage shops in Sweden. It helps with unique-SKU inventory across channels: fewer double sales, smoother operations, and support for VMB (margin taxation) workflows. The product centers on a digital twin of shop inventory—real-time stock sync, AI-assisted listing, and the ability to pull listings as soon as something sells in-store.
The customer-facing app is built in Swedish for the Swedish market.
Stack
- TanStack Start — full-stack React with SSR
- Convex — backend, database, and realtime updates
- Vite, TypeScript, Tailwind CSS, shadcn/ui
Prerequisites
- Node.js (current LTS recommended)
- npm (this repo uses
package-lock.json)
Setup
-
Clone the repository and install dependencies:
git clone <repository-url>
cd selio
npm install
-
Convex — the dev script runs Convex alongside the frontend. On first run, sign in or link a deployment when prompted:
npx convex dev
Configure any required environment variables and secrets in the Convex dashboard for your deployment, and add local frontend env files (for example .env.local) if the app expects a public Convex URL or other keys—see project docs or AGENTS.md for integration details.
Run locally
Start the Convex dev server and the Vite dev server together (default app port 3000):
npm run dev
Build and production start
npm run build
npm start
npm start runs the built TanStack Start server from .output/server/index.mjs (build first).
Other scripts
| Command | Description |
|---|
npm run typecheck | Typecheck with tsc |
npm run lint | Typecheck and ESLint |
npm run test | Vitest (shop tenancy and public field whitelist) |
npm run format | Format with Prettier |
More in the repo
AGENTS.md — product context, stack notes, and conventions for contributorsDESIGNGUIDELINES.md — visual and UX direction (“Utilitarian Heritage”)
