The LimeMicrosystems page about LimeADPD ( https://limemicro.com/technology/limeadpd/ ) claims it is a fully open source solution, including the RTL implementation.
Lime Microsystems fully open source solution for PA linearisation is based on adaptive digital pre-distortion (ADPD). The FPGA RTL and host software sources can be found on GitHub. For more in-depth technical details, please see the wiki page.”
However, looking at the github directory while FPGA bitstreams are available, I do not see any RTL code, and the project repository mainly contains .c/.cpp files. Do you intend to actually share the RTL code and comply with the open source statement? Otherwise I would suggest you should skip the “fully open source” claim from the web page.