This is encouraging - a few recent solo mined blocks, with the most recent one mined by 0.5 TH/s miner (there is a thread about it on the board). Go to mempool.space, type "solo" in the search field, and pick 'Solo CK'.

887212   ‎2025-03-10 15:22:04

881676   ‎2025-01-31 14:40:16

875750   ‎2024-12-21 11:15:27

871258   ‎2024-11-20 18:32:47