I'm trying to compile Vaultwarden for my SheevaPlug (https://www.cyrius.com/debian/kirkwood/sheevaplug/) and following the breadcrumbs in the Dockerfile of https://github.com/dani-garcia/vaultwarden back to your library.
The Marvell Kirkwood CPU is fully supported in Debian 12, see https://wiki.debian.org/ArmEabiPort . It looks like it never was in Alpine Linux though.
Is it, by chance, possible to add an armv5tel build of your lib? Maybe just the base without the apps.
Do you have any pointers on how I can build one myself?