Any CRaC / CRIU Experiences (potentially Linux aarch64)?

CRaC https://github.com/openjdk/crac

CRIU https://criu.org/Main_Page

I like to show the GraphUI demos on Raspi aarch64
without a windowing system direct on console.

However, as we know, the startup time is not ideal (4-6s before even touching our code)
and hence I like to use CRaC or perhaps CRIU.

Has anybody experiences with these tools
and resources where to get a stable build for the target platform?
If n/a maybe a simple path to succeed making my own .. some shortcut?
Thank you.