It would be very useful if Snapcraft provided a complete build log of the internal environment of the VM or container instance, including: - Versions of the OS and tools used, e.g.: Ubuntu 22.04 container, Snapcraft 7.3.1 - Versions of compilers and build tools used with each part/plugin, e.g.: gcc 12.2 - Compilation flags used for each part/plugin, e.g.: CFLAGS += -std=c99 -Wall -Wextra -pedantic -MMD -ggdb - Environment variable overrides (global and per part) - Any other build metadata This information would be optionally available via a command-line flag to developers so they can share exact circumstances of their snap build to others, and/or allow for easier debugging of build-related problems, e.g.: builds done natively versus say Docker, builds with certain build package overrides, differences in compilation flags between snap and non-snap versions, etc. The information would be provided as a text log when the flag is used.