We recently compiled a list of open (and often open source) 5G stacks: https://open5g.info https://open5g.info There are several projects focusing of different

We recently compiled a list of open (and often open source) 5G stacks: https://open5g.info https://open5g.info There are several projects focusing of different aspects of these complex networks (RAN, edge, core, orchestration, automation).