Why medium? I hate the experience of reading medium so much that I won't even look at your blog.
Setting up a redirect for it greatly enchanced the internet browsing experience for me.
I understand and empathise. For sure it is much better to just start writing than to spend months obsessing over which technologies one is going to use.
> I am planning on moving to a platform where I have more control (was thinking self-hosted static html) eventually. Do you have a favorite alternative?
Not-Medium is my favourite alternative! The bar is low: any static site generator would do fine. I wouldn't even mind you hosting on GitHub pages or whatever...