It’s difficult to choose a dependency management tool without first-hand experience, so I’m using a few to manage my own projects.

tl;dr: currently using git subtrees.

Evaluated

• git subtrees
• git submodules
• Android Repo
• Subversion

To be evaluated

• Just one big repo
• Tundra
• Apache Maven
• Meson
• Conan C/C++ package manager
• Bazel (used by TensorFlow)
• Buck
• Pants
• Chromium depot tools
• repobuild
• Ninja

References

• Dependency hell
• In quest of the ultimate build tool