Commissioning and running experience with the CMS GE1/1 system

The CMS GE1/1 system was installed in October 2020 as part of the CMS endcap muon system upgrades for the high-luminosity LHC. Since then, GE1/1 has been commissioned, and it is now participating in the CMS data taking of the LHC Run 3. The 144 GE1/1 detectors are read-out by the VFAT3 chip, which communicates with the $\mu$TCA backend through the versatile link. Each detector is equipped with 24 VFAT3, 3 GBTx, 3 VTRx, 2 VTTx, and a Virtex-6 FPGA. In this contribution, we present the commissioning and the running experience acquired over 2 years of operations with the CMS GE1/1 system. The electronics performance results are presented with an emphasis on the main issues encountered and how they have been addressed. We also briefly discuss the status of the future GE2/1 and ME0 GEM stations.