About
Jonas Templestein previously worked on Monzo and is now building nustom.com.
Jonas Templestein @jonas
Somebody has to make a competitive show where Jack-of-all-trades AI users complete tasks with AI Would be v interesting to watch and genuinely useful for the world Maybe if the challenges were “deep” challenges from lots of different job categories, people from those jobs
Aug 2, 2026 · ♥ 4
Jonas Templestein @jonas
Cookie banner v2 just dropped Maybe europeans will get a media-free version of the internet because nobody with a website wants to risk mis-labelling their images https://t.co/SEo2ZfQ5gS
Aug 2, 2026 · ♥ 8
Jonas Templestein @jonas
Make it stop https://t.co/iMoV7cWX1i
Jul 31, 2026 · ♥ 13 · ⇄ 1
Founder at ArkYC W12
Intro paths
Jonas went through Y Combinator (Winter 2012) — any YC alum in your network can reach them through the YC community.
In turn, Jonas can intro founders to Ark's investors below.
Ark's investors · 2
Co-founders at Ark
