What about those disposable hand-warmers that you shake?
EVERY use of heat lower than 60C can be provided by a miner. I don't see a hash board in this picture nostr:nprofile1qqszrdqezqk63lqt4yzgftkfxjl4tdatea67akeezf8g6a0yj86p5hsppemhxue69uhkummn9ekx7mp0qyg8wumn8ghj7mn0wd68ytnddakj7qg3waehxw309ahx7um5wgh8w6twv5hs7hzcmq, do better.
Discussion
Pocket battery powered bitaxes.
Do they have any of those that are squishy and that would fit between the back of my hand and the inside of my glove? And that cost pennies to manufacture?
nostr:nprofile1qqstrcgctzz2d52thl8r3xwt205pswkauep0yexsla83w3fhrcrpxnqpr9mhxue69uhhyetvv9ujuumwdae8gtnnda3kjctv9ujtun6x lets make this an official product request.