That's forced labor. I'm not required to write a line of code to please anyone. It's free software with no warranty. They have LLMs, let's see them build it. :)
Well, that's a 13th Amendment issue not a 1st Amendment one, but, in any case, its not forced if it doesn't direct who does the work to create the functionality, only requires you to have the functionality provided if you are doing some other activity, it is more of an in-kind tax. [0] (Now, if you want to make an argument that when the activity it is conditioned on is expressive that that makes it a 1A violation as a content-based regulation when the condition is tied to the content of the expressive act, that is a better 1A argument, that might actually have some merit against many of the real uses of, say, age verification laws; but “if I am doing this activity, I must either create or acquire and use software that has a specified function” is not, in general, a 1A violation.)
[0] It's not really that other than metaphorically, either, any more than every regulation of any kind is an “in-kind tax”, but its far closer to that than “forced labor”.
That's forced labor. I'm not required to write a line of code to please anyone. It's free software with no warranty. They have LLMs, let's see them build it. :)