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📰 Dev.to · heocoi

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Building MailSink: a temp email API with MCP server on Cloudflare Workers

Dev.to · heocoi ⚡ AI Lesson 2mo ago

Building MailSink: a temp email API with MCP server on Cloudflare Workers

The problem Testing email flows in CI has been painful for years. MailSlurp is $79/mo,...

I built a $19/mo dunning tool because Churn Buster costs $249

Dev.to · heocoi ⚡ AI Lesson 3mo ago

I built a $19/mo dunning tool because Churn Buster costs $249

The problem If you run a SaaS on Stripe, around 9% of your MRR is silently leaking every...

I built an on-device duplicate photo finder for iPhone (and why I avoided the cloud)

Dev.to · heocoi 💻 AI-Assisted Coding ⚡ AI Lesson 4mo ago

I built an on-device duplicate photo finder for iPhone (and why I avoided the cloud)

My camera roll had over 12,000 photos. A lot of them were near-identical shots I never cleaned up -...

I built a Mac app to stop exceeding my mobile data cap

Dev.to · heocoi 5mo ago

I built a Mac app to stop exceeding my mobile data cap

Ever tethered from your iPhone for "just a quick Zoom call" and ended up burning through half your...

What I Learned Building a Native macOS Menu Bar App

Dev.to · heocoi 🔐 Cybersecurity 6mo ago

What I Learned Building a Native macOS Menu Bar App

I just shipped VPN Peek - a menu bar utility for macOS — and the journey taught me more about AppKit...