For most of the use cases, default configuration of Lc0 is good for use. If you have NVidia RTX GPU, you may want to change the default network to one of the larger ones.
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Configuration
Engine parameters
Setting the parameters All the engine parameters can be set using one of the following ways: Via UCI parameters Using command line flags With a config file. UCI parameters When an engine runs through a chess GUI, it communicates all the settings through the UCI protocol.