Memory safe versions of various packages; in particular, C dependencies that you would typically find, like openssl, have been replaced with versions written in languages that prevent errors like use-after-free.
brew install --HEAD meterup/safe/curl
For more on why this is important, see https://alexgaynor.net/2020/may/27/science-on-memory-unsafety-and-security/ .
Curl is compiled with the rustls and Hyper backend instead of openssl, which means that TLS connections are made with Rust. Note that this means TLS 1.1 and below are not supported.
Git is compiled with libcurl from this repository.
Use objdump -p <binary> to inspect the symbols for a given binary - they
should point to the Homebrew compiled libs instead of e.g. /usr/lib/curl.dylib
which is the default Mac version.
If you'd like to see a package here, please open a ticket!