10 open-source repos with 358k+ ⭐️ combined stars that you can wrap in a Stripe subscription and sell tomorrow 1. strapi/strapi (73k⭐️). Headless CMS with auto-generated REST and GraphQL. Agencies charge $5k+ per client site build on top of it. You keep 100%. → 0:01 2. go-gitea/gitea (58k⭐️). Self-hosted GitHub with Actions, packages, issues, wiki, CI/CD in one binary. GitLab charges $29/user/mo for the same feature set. Sell it as "GitHub for teams that hate paying per seat". → 0:09 3. appwrite/appwrite (57k⭐️). Firebase alternative with auth, database, storage, and 15 serverless runtimes. Build client apps on it and skip the "Firebase bill blew up" phone call. → 0:20 4. fastapi/full-stack-fastapi-template (45k⭐️). FastAPI backend + React frontend + Postgres + Docker + auth + emails, ready to ship. Turn a weekend into a live SaaS with a payment page. → 0:28 5. harness/harness (38k⭐️). Full DevOps platform: Git hosting, CI/CD pipelines, artifact registry, and cloud dev environments. What CircleCI + GitHub Enterprise sell for hundreds per seat. Sell to one team, cover a year of hosting. → 0:37 6. dubinc/dub (25k⭐️). Bitly clone with UTM builder, affiliate program tracking, and analytics. Bitly Pro is $8/mo per user with usage limits. Roll your own, brand it, charge $19/mo. → 0:46 7. node-red/node-red (23k⭐️). Visual automation builder. Zapier at $19+/mo, Make at $10+/mo. Deploy Node-RED for a local business owner and charge $500 to build them 5 workflows. → 0:53 8. docusealco/docuseal (18k⭐️). Full DocuSign clone with 12 field types, multi-signer flow, WYSIWYG PDF forms. DocuSign starts at $10/user/mo and up. Sell it as a private-cloud eSignature service to law firms and clinics. → 1:00 9. is-a-dev/register (11k⭐️). Free permanent subdomain in the .is-a.dev zone via a pull request. Grab ship your landing page today, buy the real domain after you have paying users. → 1:10 10. getlago/lago (10k⭐️). Usage-based billing infrastructure. Every AI-wrapper SaaS needs metered pricing, escalating credits, and invoicing. Lago does it self-hosted, so nobody takes a cut of your revenue. → 1:15 Save this before you pay for one more tool you could just be reselling 👇