1. LiballocsMeta-level run-time services for Unix processes... a.k.a. dragging Unix into the 1980s
2. LibcrunchRuntime + instrumentation adding precise, accurate and fash(-ish) dynamic checking to C (bounds errors, type confusion, ...).
3. LibsystrapMonitor, rewrite and/or otherwise trap system calls... on Linux/x86-64 only, for now.
4. libdwarfppA high-level API for accessing DWARF debugging information, in C++
5. libmallochooksComposable high-level instrumentation for C libraries' malloc and friends