Use this to start the board as a fresh design:

Key constraint already baked in: the Nano is typically 5 V logic and the ESP8266 is 3.3 V only, so the new project should verify level shifting where needed. If you want, I can also generate a second link for a very simple shield-style layout or a compact custom integrated board.

Can you import a PCB file

I’ll check the supported import path for PCB files and tell you the cleanest way to bring your design in.

Yes — if you upload the file, I can inspect it and tell you the best import path.

Important limitation: full PCB layout files usually can’t be imported directly here; schematic/library files are much more workable, and unsupported formats can often be recreated manually from the source file. Upload the file and I’ll identify whether it can be imported directly or needs reconstruction.