https://userig.app/glossary 2026-10-13 https://userig.app/glossary/dotenv-file 2026-10-13 https://userig.app/glossary/eaddrinuse 2026-10-13 https://userig.app/glossary/environment-variable 2026-10-13 https://userig.app/glossary/health-check 2026-10-13 https://userig.app/glossary/localhost 2026-10-13 https://userig.app/glossary/loopback-address 2026-10-13 https://userig.app/glossary/model-context-protocol 2026-10-13 https://userig.app/glossary/network-port 2026-10-13 https://userig.app/glossary/process-manager 2026-10-13 https://userig.app/glossary/procfile 2026-10-13 https://userig.app/glossary/reverse-proxy 2026-10-13 https://userig.app/glossary/sidecar-process 2026-10-13