potion-calendar
🧪 Potion Calendar: a clean-room Google Calendar app. Effect 4, Alchemy and Foldkit on Cloudflare Workers.
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GITHUB · launched Oct 20, 2026 · 27 upvotes (top 53%) · 0 views
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About
- Horizontal
- B2C
- Not AI
- Hobby / open-source project
Could you build this?
Yes A calendar app with an event UI and Google Calendar sync is well within vibe-coding reach, using Google's public APIs and a serverless runtime.
What it would actually take: Use a Cloudflare Workers backend with a frontend framework, with Google Calendar API OAuth for two-way sync. Recurrence rules and timezone handling are the fiddly parts, but they are solvable with existing libraries.
Competitors
Other products that read as similar to this one : 55 launches clear the similarity bar, closest 8 shown.
Attention rank: #21 of 56 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 316 days after the earliest competitor.
- A-Place-for-Every-Potion-Trainer · github · 2026-10-30 · 12 upvotes · similarity 0.43
- GCal Cleaner · ph · 2026-10-02 · 1 upvotes · similarity 0.41
- MakeDay · ph · 2026-09-14 · 1 upvotes · similarity 0.41
- Parallax Calendar · ph · 2026-10-21 · 1 upvotes · similarity 0.41
- Lazycal · hn · 2026-02-27 · 6 upvotes · similarity 0.40
Show 3 more
- Daykite AI Calendar · ph · 2026-10-24 · 1 upvotes · similarity 0.40
- CalGantt · ph · 2026-10-28 · 2 upvotes · similarity 0.40
- Yearly for Google Calendar · ph · 2026-10-23 · 1 upvotes · similarity 0.38