Harlo OS
One OS. Every miner.
Your screen.
Harlo Labs has paused Harlo OS on every miner until further notice and is working on an alternative. It is not offered or installed on any miner for now. If your miner already runs it, it keeps working, and the Discord is the place for help.




See it running
What it did, in real screenshots.
Every miner in one list
Bitaxe next to Hammer next to NerdQaxe. Different manufacturers, one table, one login.
Overclock until you decide to stop
No ceiling. Type the frequency and voltage you want. Stock values are one click away if you change your mind.
One dashboard
Live hashrate, measured wall power and both temperatures, charted. No guessing.
Your screen, your way
Put the readings you care about on the miner's display, with your own artwork behind them.
Miners it has run on
Harlo OS is paused, so it is not being offered or installed on any of these for now.
- Bitaxe Gamma 601
- Bitaxe Naja Duo
- Bitfortun BS1
- Bitfortun BS2
- Bitfortun BS4
- Hammer BC04
- Hammer DC02
- Hammer DC08
- Hammer Thor P2
- NerdAxe Gamma
- NerdOctaxe Rev 3.1
- NerdQaxe++ Rev 5.1
- NerdQaxe++ Rev 6.1
- NerdQaxe++ Rev 7
- Nexus L1
- Nexus QX1
- Nexus S1.1
Already on HashWatcher? It keeps working after you flash.
One developer, in the open
JD built Harlo OS in the open. It is paused on every miner until further notice while Harlo Labs works on an alternative, and news lands in the Discord first.
What people say once it's running
“This is truly the most control a user can have on their home miner.”
“Block hit on the Harlo OS in less than 1 hour on Fenix Pool.”
“Version 2 has been rock solid.”
Paused for now.
Harlo Labs has paused Harlo OS on every miner until further notice and is working on an alternative. It is not offered or installed on any miner for now. If your miner already runs it, it keeps working, and the Discord is the place for help.