NOTE!! this board has been updated - it now has a 10-pin ICSP header for direct connection to a USBasp.
Buy at Tindie - https://www.tindie.com/products/30824/
ATtiny10-Rst and ATtiny10-SPI boards overview.
ATTiny10 dev boards are available from https://CanHobby.ca/attiny
Buy at https://www.ebay.ca/itm/115162324851
Blog/Sketches at https://hackaday.io/project/195723-blink-sketches-for-the-attiny10-led-from-canhobby
GitHub at https://github.com/CanHobby/ATtiny10