nwipe
https://github.com/martijnvanbrummelen/nwipe v0.40 introduced a new I/O mode system capable of doing O_DIRECT writes. This should improve performance.
I recommend using ShredOS for nwipe if you aren’t already using Linux, but it only supports x86 PCs. You may run it in a virtual machine if your drive to wipe is an USB device.
For arm64 devices, you’ll need to use a regular Linux distribution and compile nwipe from source. Even though Grml Live Linux offers arm64 images, its nwipe version is still 0.38.1 as of Grml release 2026.09. Wait until https://packages.debian.org/search?suite=sid&searchon=names&keywords=nwipe reports version 0.43 and try a daily snapshot of Grml again.