Darkplug

Darkplug is an iPhone app by Péter Szentkirályi for film darkrooms. It switches a Shelly smart plug over your local network, turning an enlarger on and off for a set number of seconds as an exposure timer.

A phone and an ordinary smart plug are all it takes to get a darkroom timer. On Hacker News the author said the app was vibe coded with Codex and Xcode.

Who it's for:film photographers who print their own work and have a Shelly plug.

Before you start: you need an iPhone, a Shelly smart plug and a darkroom enlarger, with the phone and plug on the same local network. The basic features are free; Darkplug+ is a one-time in-app purchase. It switches real electrical equipment, so follow the plug and enlarger makers' safety guidance. The app is released under Apple's standard license plus the author's extra terms; it isn't open source. The interface is in English.

Based on the official site and the author's post on Hacker News. Not tested by AI Inspiration World.