Solo - Personal kanban boards hosted on your own server

library.io - Learn electronics and easily create circuit boards online

Cash App - The easy way to send, spend, bank, and invest.

Circuito.io - Instant code and wiring for your project

Stripe - Online payment processing for internet businesses. Stripe is a suite of payment APIs that powers commerce for online businesses of all sizes. Use Stripe’s payment platform to accept and process payments online for easy-to-use commerce solutions.

Circuit Stickers - Peel-and-stick electronics for crafting circuits.