The Librem 13 v1 coreboot port is now complete
puri.sm
puri.sm
[1] https://puri.sm/posts/diving-back-into-coreboot-development/
[2] https://puri.sm/posts/librem-13-coreboot-report-january-12-2...
[3] https://puri.sm/posts/librem-13-coreboot-report-february-3rd...
It still has Intel's ME (Management Engine) proprietary blob, and at least 2 months ago it was using a reverse-engineered, but not complete, driver for the trackpad.
However it has made significant progress since the first revision on many aspects, and I hope it will someday be totally 'pure'.