If you are in IT in Sweden you might want legal advice to check this out. Anything that you build outside of work might be owned by your employer by default.
The employer in question rolled out a new contract a while back. Different from the one I had signed many years ago when I first started.
The new contract did have a section that stated essentially that anything an employee produces, on or off business hours, in or out of business locations, is owned by the employer.
I flat out refused to sign this and there was apparently no requirement for me to sign it. It was just presented to me digitally because a process had been started in their systems and signing that contract was part of the process.
If I'm forced to sign it I will request a new contract without that section in it. Because even before I had my own business I was writing open source code for open source projects that we use and rely on. So it's impossible for my employer to own that code.
Law (1949:345) "rätten till arbetstagares uppfinningar"
It essentially specifies that the employer owns, but must pay a token cost for, "inventions" by an employee outside of his normal employment field and duties.
When you get hired you should _always_ make sure this is stricken by your contract.
> If I'm forced to sign it I will request a new contract without that section in it. Because even before I had my own business I was writing open source code for open source projects that we use and rely on. So it's impossible for my employer to own that code.
You need to _include_ a section that effectively negates 1949:345. Otherwise that law applies if nothing else is stated in the contract.