Rune – Focused Markdown Writer

A lightweight desktop markdown editor with crash-proof atomic saves, automatic image content-addressing, and workspace management. Built for writers and developers who need a distraction-free, reliable markdown experience.

The markdown editor space has seen renewed interest as more writers adopt plain-text workflows and developers document in-repo, but that same momentum has produced a crowded field—Obsidian, Typora, and iA Writer already own strong positions with loyal user bases. The $1k–5k/mo revenue band is plausible for a niche desktop utility but requires either a one-time purchase model with volume or a subscription that users rarely churn from, and desktop productivity tools historically struggle to justify recurring charges. Differentiators like atomic saves and content-addressed images are genuinely useful engineering choices, but they're invisible to most buyers until something goes wrong, making them hard to market. The most likely failure mode is that the addressable audience willing to pay for yet another markdown editor is simply too small to reach the low end of that revenue band before motivation runs out.