Thinking about making my own lemmy client, but I could use some feedback

Here are the problems I want to solve:

The same app everywhere

It will run as a website, iOS app (also on macOS), and Android app. It will be responsive, supporting phone, tablet, and computer screen sizes along with everything in between.

And I’m not talking about simply resizing the interface. Navigation (e.g. sidebar or on mobile bottom tab bar) will match what you would expect to see on the device size you’re using. But everything else (e.g. posts) will look the same, which I hope will make it really easy to jump from mobile to desktop.

Onboarding and configuration

The app will allow you to configure it to look like a typical Reddit or Lemmy app. During the onboarding process, I will prompt you, asking which style of interface you prefer. Consider these presets, which change a bunch of more granular configuration options. I will also give you the ability to fully customize each option instead of picking a preset.

Caching and offline support

This is where it starts to get more tricky. Caching is easy. If you launch the app, it will have everything you previously saw still loaded.

I would like to make it so upvoting, for example, can be done offline. The app will optimistically apply the upvote to the post or comment, then when you reconnect to the internet, it will actually apply the upvote. This is a difficult problem to solve, so I can’t promise this will work, and it would likely be the last feature I add.

I need your feedback

This is a big project to undertake. I really want a Lemmy client that checks those boxes for myself, but I’m curious if any of those resonate with you? Is there anything I missed that you would like to see? If I do build this, I will likely have to keep the project very focused as far as features go initially.

Just for context, I’m using Voyager on iOS currently. I really like it, but the “the same app everywhere” concept and making it easier to onboard Reddit users are my main motivations for creating my own app. My app will also be fully open source