What do developers wear for an interview?

Ladies & Gents!

This is probably one of the most stupid questions you'll find on hashnode but I've not no idea what to developers wear for a second stage interview in London.

My first interview was done on Skype and I just wore the top (in my profile pic on hashnode), jeans and boots. I adopt quite a casual, conservative reserved style.

Back in the past I worked in logistics so I was more boot-suited but being in this kind of market, and it also being a remote web developer position, not too sure if this time I should be a bit more formal or just dress comfortable?

I was thinking of a smart dress but I'm wondering if this will spark my nerves from the past as I want to be as confident as possible to land this position.

I've not lived in London long let alone been in this market so any help would be much appreciated!

Any information would be much appreciated x