TLDR: very time intensive technical assessment required and then they completely ghosted me despite several follow ups. Very unprofessional. I wouldn't recommend applying.
Had an interview with one of the co-founders who was leading the recruitment. Then I was given a technical assessment which I had two weeks to complete.
They provided some sketches and I had to build and deploy a full-stack app, despite applying for a frontend position. It was very time intensive.
After submitting I was told they would review it and get back to me. Despite following up several times over the course of a month I never heard back from them at all.
It was very unprofessional of them considering how much time they required for me to apply. I completed the assessment with a product that exactly matched their specification so I don't know why they never got back to me.
I would not recommend applying.