Markdown-First List Manager with Mobile & CLI

A lightweight list app that syncs across iOS and command line, storing data as plain markdown files. Perfect for developers and power users who want lists that work everywhere without vendor lock-in.

Plain-text and local-first tooling has genuine momentum right now, driven by Obsidian's success normalizing markdown as a data format and growing distrust of cloud-only apps after Notion outages and price hikes. The closest substitutes are Obsidian (with its task plugins) and Tot, plus the unix crowd already using todo.txt with custom shell scripts — meaning the target users are technically capable of cobbling something together themselves, which is the core problem. At a $500–2k/mo ceiling, this almost certainly tops out as a solo side project rather than a business, since the natural price point for a "lightweight" tool is low and the audience actively resists paying for software they feel entitled to build. The single most likely failure mode is that developers who want this just do build it, keeping the addressable paying market too small to justify the ongoing maintenance burden across two platforms.