I force-exited a non-custodial Blink wallet (using Spark) on Bitcoin mainnet.
Seed only, no operators.
100,000 sats in → 89,668 reach the destination.
18 of 22 leaves were dust costing more to exit than they hold.
The exit works, but it's a fire escape, not a door.

https://m.stacker.news/150808

Code repo: https://github.com/blinkbitcoin/spark-unilateral-exit

Case study: https://github.com/blinkbitcoin/spark-unilateral-exit/blob/main/docs/mainnet-exit-case-study.md