30 days of building in public. every number, including the embarrassing ones. i quit my job to build products full-time. team: one Mac mini, Claude, and me. here's month one, unfiltered. 📦 what i built: • Split Today — expense splitting app, Android, in closed testing • a UPI amount reader that runs on-device with ML Kit, and only calls Gemini when the read comes back blank • personal income & cashflow, versioned monthly • RevenueCat wired end to end — ₹99/mo, ₹499/yr, ₹1,799 lifetime • 900+ automated tests • Speed Develop — the company, and its site 💰 what it cost: • Claude Max — ₹12,493/mo • Play Console — ₹2,400 • Domain — ₹1,100/yr • Team — ₹0 📉 what i earned: $0. the failures, in order: 1. 137 cold emails. 1 yes. 0 closed. i thought the emails were bad. they weren't. nobody buys from a stranger with no public work. 2. 90 days on LinkedIn. 1,409 impressions. zero business owners reached. i kept posting because stopping meant admitting the lane was dead. 3. rejected from Play production. 12 testers, 14 days. Google doesn't check if you hit the number. it checks if the test was real — my testers installed the app and never opened it. 4. built a PaddleOCR service. deleted it a week later. the on-device read was already good enough. i built the hard version first. 5. days 1–18 of this series are on a different account. i split my own audience in half before i had one. what 30 days actually taught me: building in public isn't what you do after the outreach. it is the outreach. i just ran them in the wrong order. shipping stopped being the bottleneck in week two. the tooling got cheap. the bottleneck is taste — knowing which of the ten things to build. posting my problems got me nothing. posting what i learned from them got me everything i have. 🎯 day 31–60: • Split Today out of closed testing, into production • first paying user — not first 100 • iOS • and the number i'm most afraid to post: revenue, every Friday, even at ₹0 day 30. ⚡

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