Hi,

having Boost headers available would be good. Boost contains many libraries that feature entirely non-trivial code. Having a tool like cppinsights available that can help answer questions like which conversions are invoked, which overloads are being selected etc. would be nice.

Of course the ideal solution would be something like Matt Godbolt's awsome Compiler Explorer has where you can select which version of which library you need. But a recent-ish Boost version would already be an improvement :)