OpenTrailPaper bets open-source firmware can beat closed e-ink bike computers
Show HN 2026-09-04 drew 334 points for open-source firmware that turns a LilyGO e-paper board into an offline bike computer with FIT files and ANT+ sensors.
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2,000 PUBLISHED CASES · REGULARLY UPDATEDWelltory bets consumers pay for HRV stress science; 17M users, PH monthly #2
A phone-camera HRV platform turns stress and energy into quantified insight; Product Hunt monthly #2 (963 votes, Nov 2025) and 17M users by 2026.
Read the caseEmbark's $5.2B SPAC merger left it worth less than the cash it raised
Embark Trucks went public via a $5.2B SPAC merger in 2021; a year later its market cap had fallen below its own cash reserves.
Read the caseDograh bets open source beats Vapi: PH #1 day Aug 12, 2026, 589 monthly votes
Open-source self-hostable voice-agent platform hit PH #1 of the day Aug 12, 2026 and #4 of August's month (589 votes); 3,776 GitHub stars by May 29.
Read the caseBluwhale bets AI agents need an on-chain 'intelligence layer'; $100M, Binance listing
Singapore-based Bluwhale bets decentralized AI agents need wallet data plus compute on-chain; $10M Series A, $BLUAI TGE, Binance Alpha listing Oct 2025.
Read the caseCompass Pathways raised $80M to run the first large psilocybin trial for depression
Compass Pathways closed an $80M Series B to expand its psilocybin therapy trial for treatment-resistant depression across 20 sites in nine countries.
Read the caseBridger bets EPA's methane rule makes aerial LiDAR leak surveys a must-buy
Aerial LiDAR methane scanner founded 2006; first EPA-approved remote sensing under the 2024 methane rule, serving 9 of the top 10 US gas producers.
Read the caseKiwify bets simpler beats bigger in Brazil's course market; 25M students, BC license
Brazilian creator-commerce platform Kiwify bets beginners pick simpler tools over Hotmart: 30k+ creators, 25M buyers, YC-backed, Central Bank license
Read the casePixelmator: no-VC Mac editors grossed $1M in 20 days; Apple acquired the company in 2024
Brothers bootstrapped photo editors in Vilnius, no outside funding; $1M grossed in the Mac App Store's first 20 days; Apple acquired the company in 2024.
Read the caseSysadmin Casts bet bite-sized screencasts could teach what scattered docs couldn't
A working sysadmin built a free library of short Linux screencasts with transcripts; when it hit HN in July 2014, viewers offered to pay.
Read the caseStark Bank's API-banking bet: Bezos-backed in 2022, R$600B moved by 2025
Rafael Stark bet companies would bank through APIs, not branches; after a $45M Bezos-backed round, Stark Bank moved R$600B in 2025.
Read the caseGRU Space bets a lunar hotel is the wedge to permanent Moon infrastructure
YC W26 startup sells $10M+ Moon stays before building them; regolith-brick 'Moon Factory' prototype, reservations open, 2032 target.
Read the caseAtomberg's energy-fan bet hits ₹1,000 Cr revenue by FY25, with losses still widening
Atomberg bet Indians would pay a premium for BLDC fans that cut electricity use; total revenue crossed ₹1,000 Cr in FY25, losses at ₹204 Cr.
Read the caseUltrahuman bets a no-subscription smart ring can unseat Oura; $35M raised, FY25 profit
Ultrahuman bet no-subscription smart rings plus a CGM ecosystem could overtake Oura; FY25 revenue 5x'd to ₹565 Cr, first profit.
Read the caseDott bet full-time warehouse staff would beat gig 'juicers' at charging scooters
While Lime and Bird paid gig workers to charge scooters overnight, Dott built its own warehouses and hired full-time staff, then raised a $34M Series A.
Read the caseHuly's everything-app bet: 26.8k GitHub stars, then hosted service shuts down unfunded
Hardcore Engineering's open-source everything app drew 26.8k GitHub stars but ended hosted Huly in July 2026 when hosting was no longer funded.
Read the caseTalkie's US chart bet: No.4 AI app in America, then an App Store vanishing
MiniMax's companion app Talkie went global-first from Shanghai, reached No.4 among US AI apps in 2024, then vanished from the US App Store that December.
Read the caseCellares built a New Jersey cell-therapy plant on a $380M Bristol Myers Squibb deal
Cellares, with $355M raised, is building automated cell-therapy manufacturing in Bridgewater, NJ, and Bristol Myers Squibb reserved capacity in a $380M deal.
Read the cased.light's PAYGo solar bet: from kerosene lamps to a $1B securitization milestone
Stanford-founded solar company bets off-grid Africans will pay in installments; its $50M LSE green bond pushes securitized financing past $1B.
Read the caseCapiter's $33M B2B bet collapsed into a founder-versus-board war that froze salaries
Egypt's top-funded B2B e-commerce startup burned its $33M round, fought its own board, and left staff and creditors owed $3-5M.
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