yuzu is the world's most popular, open-source, Nintendo Switch emulator — started by the creators of Citra. It is written in C++ with portability in mind,
# List of environment variables to be shared with Docker containers
CI
TRAVIS
CONTINUOUS_INTEGRATION
TRAVIS_BRANCH
TRAVIS_BUILD_ID
TRAVIS_BUILD_NUMBER
TRAVIS_COMMIT
TRAVIS_COMMIT_RANGE
TRAVIS_EVENT_TYPE
TRAVIS_JOB_ID
TRAVIS_JOB_NUMBER
TRAVIS_REPO_SLUG
TRAVIS_TAG
# yuzu specific flags
ENABLE_COMPATIBILITY_REPORTING
USE_DISCORD_PRESENCE