how to get the dev miner's private key?

[bruce1ee]

The miner address I found is t01000 when launching a local testnet. But how to get the its private key?

[bruce1ee]

Or how to custom a miner privatekey and address to it?

[jsign]

Currently, it isn't possible, and a bit out-of-scope to what lotus-devnet is meant for (allow applications to test Lotus APIs or use in CIs).

Tunning the miner's address or private-key seems possible but feels like a stretch.