- I have some experience with modifying existing char sheets from other
systems, but I feel uneasy using such a modified sheet for my project,
since it is supposed to be commercially distributed one day. All the sheet code in the repo is avaiable under MIT, so you should have no qualms to use existing sheet code as a partial basis for any sheet you create, whether you get paid or not. - I understand this is not a place to get professional legal advice,
just looking for help getting a basic idea of my best options. I suggest you read the MIT license , and perhaps read some articles people have written about it to get a better perspective on it, and to aliviate your legal concerns. If you intend to get a sheet published so it appears in the Roll20 sheet selection, your code will end up in the public github repo and fall under MIT license all the same.(Roll20 have sheets they made themselves in a private repo, so even sheets comissioned/created by publishers themselves ends up in the public repo. Exceptions might be possible, but you'd have to reach out to Roll20 for more on that). On a personal note, I'd worry more about asking help on too specific "sheet creation"-issues from others (the equivalent of having the internet do the job/homework for you", rather than anything related to using other peoples code. If it's in the repo, the MIT license give basically a free-to-do-whatever on it, and if you find sheet code elsewhere on github or somewhere else, check if there is a license on it or what it says. That being said, there are several sheet templates available, made by people who have professionally worked on creating roll20 sheets(me included). <a href="https://wiki.roll20.net/Building_Character_Sheets#Sheet_Templates.2FExamples" rel="nofollow">https://wiki.roll20.net/Building_Character_Sheets#Sheet_Templates.2FExamples</a> Sheet Templates/Examples
Roll20's character sheet Roll20's template
Cassie's sheet template by Cassie (Uses PUG/SCSS so not recommended for beginners)
CSS Grid sheet template by Anduh
Sheet template based on Blades in the Dark by Jakob
Of these three independent ones, only mine(Anduh) have an actual license attached, while the others are clearly intended for anyone to use, but is in a legal grayzone in that sense, so reaching out and asking about it would make things easier.