Business
4 posts · freelancing, SaaS, taxes
-
Business 12 min read
Czech švarcsystém is not business
After 15 years as a freelancer I compare Czech companies with German clients: tracking, office, hourly rate, risk, and why it pays to keep looking.
-
Business 10 min read
Synchronous VIES in billify: 3 iterations for an invoicing API
When an invoicing API returns 201 Created with a PDF URL in a single HTTP cycle, an 80-second retry budget is unusable from the start. Three iterations of getting the synchronous path to VIES under control.
-
Business 19 min read
VIES audit trail in Laravel: 4 design iterations for an EU B2B SaaS
How to verify VAT IDs through VIES for EU B2B reverse charge invoicing in Laravel - an append-only audit log, a retry budget, two entry points for cron and checkout, and why a 'simple wrapper' is not enough.
-
Business 10 min read
My first SaaS
How my first SaaS project came about. From the first idea to the design of my own proof-of-work algorithm.