... Query Optimization: Replaced heavy nested SQL queries with indexed lookups, reducing response time from ~320ms to under 45ms. 3. Asynchronous Task Queue: Moved non-essential tasks (like sending welcome emails or triggering notifications) to background workers using Celery. This simple optimization not only handled 5x higher concurrent users during stress tests but also cut our estimated monthly infrastructure costs significantly. For fellow tech builders and founders: What is your go-to database optimization technique before going live on Product Hunt ...

... degree. No bootcamp. Just YouTube tutorials, Stack Overflow at 2am, and a lot of stubbornness. Over the last year I built a full SaaS completely alone Flask backend, PostgreSQL, Redis, Celery workers, OpenAI integration, YouTube API OAuth, payment webhooks, the whole thing. Every bug was a lesson. Every deployment that crashed taught me something the tutorials never mentioned. I'm launching soon and honestly terrified but also proud of how far self-education can take you if you're consistent ...

... degree. No bootcamp. Just YouTube tutorials, Stack Overflow at 2am, and a lot of stubbornness. Over the last year I built a full SaaS completely alone Flask backend, PostgreSQL, Redis, Celery workers, OpenAI integration, YouTube API OAuth, payment webhooks, the whole thing. Every bug was a lesson. Every deployment that crashed taught me something the tutorials never mentioned. I'm launching soon and honestly terrified but also proud of how far self-education can take you if you're consistent ...

... Solo builder here, won't say much about the product yet but happy to talk shop on the plumbing. Quick version of what I'd tell my past self: Auth - Supabase, Clerk, Auth0, pick one. An afternoon of setup vs. days of building it badly. I tried the days version first, do not recommend. Permissions - this is the sneaky one. Most people check "can this user see this?" in their app code. Way better to push the rule into ... ... tattoos or mockups) Tech-wise I m using: Flutter for the mobile app Firebase (Firestore + functions) OpenAI + Replicate for image generation (testing multiple models right now like DreamShaper, Flux, Ideogram) Biggest challenge so far has been balancing quality vs

... coding: @Gemini and @Claude by Anthropic For website launch @Netlify , @Google , @Squarespace Creative production: @Gemini , @Canvas , @ingosa , @AppScreens Marketing: @Reddit , @TikTok , @TestFlight (iOS app) Comment from Simona O'Neill(@simona_o_neill3): Currently , only ChatGPT & Codex in VS Code plus Vercel. I did use Claude initially to get the core structure of my app, but got really fed up with constant syntax errors so dropped it. I just launched my first solo built/ vibe coded app - 70Lives Beauty Business ... ... plan), and use ChatGPT (Plus) for small tasks and concepts. I have tried Jules but that did not really work for me, as my environment couldn't run on the instances (Django with Posgres, Redis, Celery