CentOS 7 AI Setup Guide: Fixing Hermes Agent Python & Pillow Errors

Installing Hermes Agent 0.21.3 on CentOS 7: Fixing Python Version Conflicts, Dependency Resolution Errors, and Pillow Build Failures Installing modern AI tooling on an older enterprise Linux environment often reveals problems that never appear on a fresh workstation. While setting up Hermes Agent 0.21.3 on a long-running CentOS 7 machine used for EDA workloads, I encountered several unrelated issues in sequence: Hermes launching with the wrong Python interpreter Missing core dependencies after installation Dependency resolution conflicts involving pillow-heif Pillow 12.3.0 source build failures on CentOS 7 Environment contamination from EDA-specific LD_LIBRARY_PATH settings After resolving each issue, Hermes Agent started successfully …