Well, it applies to very popular software. SQLite3 is probably the most popular software ever written. This really might be a special case. But it probably would work for things like: OpenSSL, PostgreSQL, Java, Rust, and a few others. Most if not all of those don't need to change models, which leaves newer / less popular projects, and for those to bootstrap this model is difficult. It might be that the SQLite model is unique -- that it won't be repeated much or at all.
