Marc Kat

marc@primal.net

I started writing for sats on the lightning network on block 612,792.

Now I write on nostr and add my favorite blogs to a landing page.

Overview Articles Media Highlights

by Marc Kat

February 20 2026
Cover image for Support

Support

Support Page

by Marc Kat

February 13 2026
Cover image for #

#

I wrote this article to help onboard Square Merchants onto the bitcoin payment rails because we think bitcoin is better money and want to help bring more customers to businesses that accept bitcoin. I plan to hand business cards with a QR code that links to this article to businesses that have Square payment terminals, but have not yet elected to accept bitcoin. Please share this article with shops near you.

by Marc Kat

February 9 2026
Cover image for The Nostr Tip Jar

The Nostr Tip Jar

A tutorial designed to teach employees who work at businesses that accept bitcoin how to make a lightning network tip jar using Primal.

Soap Miner Comercial

This is a value 4 value commercial for soap miner. What does that mean? He didn't pay me to say this...
Don't Spam The Timechain

I describe why I think Satoshi did not inscribe spam on the genesis block and how this is not the sa...
Using Gitea With Vlogstr

This is how i use Gitea with Vlogstr.
Tomato In My Garden(This is really part of a vlogstr tutorial)

A moving tomato.
Sat Swear Jar

How I created a swear jar that accepts sats.
Testing Vlogstr

Testing Vlogstr

And you can also commit injustice by doing nothing." —Marcus Aurelius

And you can also commit injustice by doing nothing." —Marcus Aurelius

And you can also commit injustice by doing nothing." —Marcus Aurelius