# Explicit opt-in: add after docker-compose.yml, keeping one existing profile. services: backend: environment: GLISS_PROFILING: "true" backend-dev: environment: GLISS_PROFILING: "true" slave: environment: GLISS_PROFILING: "true" frontend: build: args: VITE_GLISS_PROFILING: "true" frontend-dev: environment: VITE_GLISS_PROFILING: "true"