What about Coldcard??
Can't skippy on nostr:nprofile1qqs9500z3l7sn46sdnls5fnjm0d3lqmrq7707qshes2y7j8pnm4rllcpzamhxue69uhhyetvv9ujuurjd9kkzmpwdejhgtcwhhjgq or Jade from nostr:nprofile1qqsfy229w70e8lgtxavlz9t78k06yrel6fxyhreteafqet8kfxhhwmg2c6av2.
https://bitbox.swiss/blog/anti-klepto-explained-protection-against-leaking-private-keys/
Discussion
Not that I know of. Maybe nostr:nprofile1qqsvkuegh3gydal7lrudkns0t2nr5549fjrhrskpq0eaq8m4tj7xeuspz4mhxue69uhkummnw3ezummcw3ezuer9wchstxglg8 knows?