open-source-silicon.dev

I wanted to confirm that <https://github.com/efabless/caravel_openframe> is the current caravel harness that is going to be used in mpw3 and mpw4
That also implies that the picoRV32 core is being replaced with a vexriscv core?

here’s a response related to this question on the timing closure channel:
<https://skywater-pdk.slack.com/archives/C02K4RD241Y/p1639498512185800?thread_ts=1638758421.176000&amp;channel=C02K4RD241Y&amp;message_ts=1639498512.185800|https://skywater-pdk.slack.com/archives/C02K4RD241Y/p1639498512185800?thread_ts=1638758421.176000&amp;channel=C02K4RD241Y&amp;message_ts=1639498512.185800>

What is Linen?