A lot of my friends work at companies with legacy code, a lot of which have libraries that they bought where the company isn't even around anymore and it was lo

A lot of my friends work at companies with legacy code, a lot of which have libraries that they bought where the company isn't even around anymore and it was locked on to a specific system by license, they can't transfer it, can't fix it, can't update it. I won't use a language that isn't open source, I don't trust companies enough, there is a chance they could die, revoke a license or do some other stupid thing that makes it unreliable in the future.