Good morning, it is possible to use OpenLane flow with FreePDK45 pdk ?

Yes you can. But you need to setup the flow. If you want to use existing setup, try https://github.com/The-OpenROAD-Project/OpenROAD-flow-scripts

What I have to change in the setup ?

https://openlane.readthedocs.io/en/latest/for_developers/pdk_structure.html refer this

Perfect, thank you

You may want to check the nangate45 config in the openroad flow scripts

Hi, sorry, I don't understand where I can find the files for libs.tech, such as config.tcl and traks.info etc...