If you are using an Arm64 architecture or need a highly customized build, you can compile KLayout from source.
Note: If your design kit (like the IHP Open PDK) requires a specific recent version (e.g., v0.29 or higher), the version in the default repository might be outdated. 2. The Recommended Way: Manual .deb Download klayout download ubuntu
KLayout Download and Installation for Ubuntu: A Complete Guide If you are using an Arm64 architecture or