I have a few side project ideas. I started one of them a few months ago (project setup, dependencies, git repo, index page, very basic API and client functionality). But I cannot get myself to work on it or even think about it (for months now). The reason? I do not want to work on the client/frontend! I do not want to deal with React or Vue or Svelte or fuckjs or even jquery. It's a fucking mess.

For the backend, the requests are stateless: you get a request, handle it, and respond back. Need to update state? Database. That's it!
For the frontend, there's just tooo many states I can't keep up with! When the user checks or unchecks this checkbox, I need to maintain the state of the checkbox and maintain the all effects of changing the checkbox while syncing with the backend and making sure the elements are still styled correctly with the applied effects. Multiply that with all the expected interactive elements on the page. It's exhausting!