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Saish More
Saish More

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What I learned building a full-stack inventory management system

I recently built a full-stack inventory management system as an internal tool and learning project, and it turned into something more complete than I expected.

The system includes:

  • Authentication (JWT + Google OAuth)
  • Multi-organization support
  • Inventory & stock tracking
  • Orders & customer management
  • Analytics dashboard
  • Image uploads (Cloudinary)
  • Modern admin UI built with React + Vite + Express

Some things I learned along the way:

  • Internal tools grow faster than expected once multiple users are involved
  • Role-based access becomes necessary very early
  • Analytics are usually an afterthought, but stakeholders ask for them first
  • Treating internal tools like products saves a lot of refactoring later

I’m not turning this into a SaaS — it’s a complete codebase intended for developers or small teams who want a ready internal tool instead of building from scratch.

For anyone interested, I’ve shared demo videos and the full codebase here:
https://saishmore.gumroad.com/l/fxwnx

If you’re a founder or developer who’s built internal tools before, I’d love to hear:
– Would you build this yourself or buy a ready codebase?
– What features usually matter first for internal dashboards?

Happy to answer questions.

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