Inkwell v1.5.1 — File Association + Math + Auto-save

A patch release fixing baseline OS integration and a couple of editor quality issues.

Highlights

Inkwell now opens .md files when you double-click them. Set Inkwell as the default app for Markdown in your OS settings and double-clicking a file opens it in a new tab whether Inkwell is running already or not.

Inline math regression fixed. Single-character math like $r$, formulas like $0A+2B$, and parenthesised expressions like $(A+B+C)$ render again. Currency notation ($5 and $10) is still correctly ignored.

Periodic disk auto-save. Files with a saved path get written to disk every 30 seconds in the background, on top of the existing in-memory save. Untitled files stay in the workspace database until you Save As, same as before.

Fixes

• Read file argument on launch — Inkwell now reads the file path passed by the OS when you double-click a .md file from Explorer / Finder / a file manager. Works on cold start and against an already-running instance. Closes [#13]'s request and a customer ask from April.
• Inline math regex — the previous rule required a letter or backslash as the first character, which broke $r$, $0A+2B$, and similar. Replaced with a non-whitespace anchor that handles real-world formulas without false-matching currency. Closes [#17].
• Periodic disk auto-save — adds belt-and-suspenders persistence for files on disk. The existing workspace-database save is unchanged; this just ensures the file on your filesystem is current too.

Internal

• tauri-plugin-single-instance added for clean second-launch handling.
• rustls-webpki bumped 0.103.10 → 0.103.12.
• CI: cargo audit runs non-blocking (still reports every finding, no longer gates the build on transitive advisories outside our direct dependency surface).

Downloads

Also live on the Microsoft Store as Inkwell Editor and on Gumroad at 4worlds.gumroad.com/l/inkwell.

License

PDF and HTML exports require a Pro license. Everything else is free. Buy once, own forever — every future update included.