Experiments that escaped the lab

A small open-source lab, best known (of all things) for a calendar.

$ ls ~/apps ↓

Here's what we send to our servers:

Network
NameTypeSize

— no requests —

nothing left your device

0 requests·0 B transferred·0 trackers·0 accounts

// apps

For everyone

KashCal
KashCal F-Droid

A modern calendar that works offline and syncs iCloud, CalDAV, holidays, and birthdays. Your schedule stays on your device.

Website GitHub F-Droid
KashCake
KashCake

Never forget a birthday. Pulls from your contacts, computes reminders on-device, and stays there.

GitHub Download

// power tools

For the technically inclined

☁ iCloud Calendar MCP

An MCP server that gives AI agents read and write access to iCloud Calendar. On the MCP Registry, npm, and PyPI.

$npx @icloud-calendar-mcp/server
GitHub npm PyPI
iCalDAV iCalDAV

A Kotlin CalDAV client with offline sync and conflict resolution. The engine that powers KashCal's calendar sync.

Website GitHub

// ethos

How we think about software

// 01

Your data is yours

It lives on your device. We never see it, store it, or sell it.

// 02

Open by default

All our code is public. Read it, fork it, audit it.

// 03

Design matters

Beautiful interfaces aren't just for Big Tech.

// 04

Does one thing well

Each app has one job. It does it well.