Homebuilders' cooperative. While they provided some services to their members, like renting scaffolding, cement mixers and few other items that a homebuilder would prefer to rent (because they'd be too expensive to buy for just a few days of use), and providing some loans to members, their main reason for existence was that they provided you with a proof that you, as a member, are building your own home and are thus retail tax exempt. Which was a lot.
There were limits as to how much could you buy tax-free, and these were in your project, so you had to provide one to become a member, and whenever you needed that proof, your project would be checked against what you are buying and what you already bought... which meant a lot of data needed to be stored somewhere, and they needed software for that. That was my first paid tezga.
4-IX-2019 - 25-III-2026