Trunk-based development is a practice that involves developers merging small, frequent updates to the main branch of the codebase to develop features and fix bugs directly. This approach enables the team to iterate quickly and gives team members complete ownership over the code, as they are directly responsible for the health of the codebase.
Continuous Integration (CI) ensures that code changes are integrated immediately into the main branch, automatically tested, and built. This practice helps catch problems early, forces developers to consider the impact of their changes, and encourages the team to work together to resolve issues.