Here is a list of all documented files with brief descriptions:

dot-xx-assert
d1bd36bb48ea9691631aef1714100d25b706078b
src
assert.xx	Main and only file of the dxx.assert module
dot-xx-cstd
484a6c8938eb0cab412991f9f9f7d1d8de560958
src
compat.xx	Interface file for cxx.cstd.compat module
cstd.xx	Main interface file for dxx.cstd module
fixed.xx	Interface file for dxx.cstd.fixed module
internal.xx	Re-export macros as enums
dot-xx-errors
d424cf7e88206bd42936e982b14b3a0ec9373d83
src
errors.xx	Main interface file of dxx.errors module
dot-xx-http
f43532dd7ff971af773400ef36505f205dcaa85e
src
coro.xx	Coroutine types for the server
errors.xx	HTTP server exception types
http.xx	Main interface file for dxx.http module
message.xx	Request and Response types
method.xx	HTTP methods enum and strings
mime.xx	Built-in mime-type mappings
path.xx	The server's path matching
server.xx	A simple HTTP server
status_codes.xx	HTTP status codes enum
url.xx	URL encoding and decoding
dot-xx-math
404a2e38e835a56e622ae6ce8e4a230638af3dbd
src
linalg
basic_ops.xx	Basic vector aritmetic. No documentation for functions since they are generated with macros (I know, I know, it was just too much to just write out...)
container_traits.xx	Traits that help the library where std::ranges API isn't enought. READ THE DESCRIPTION OF math::container_traits CAREFULLY
cross.xx	Cross product of 3D vectors
dot.xx	Dot product
linalg.xx	Linear algebra utilities for dxx::math
norm.xx	Vector norms
traits.xx	Type traits and concepts for linear algebra utilities
utils
abs_diff.xx	Absolute difference between two numbers
sign.xx	Number sign
utils.xx	Main interface file for the dxx.math.utils module
math.xx	The main interface file of the dxx::math module
dot-xx-overload
7338e3df4e527f7ac20e3471672260962b070b37
src
overload.xx	Main interface file of dxx::overload module
dot-xx-selftest
4d96b5bbd3d7687e98aaef4d82b832d4e8d43321
src
lifetime_tester.xx	A class for testing and tracking object lifetimes
name_deduce.xx	Unit test name deduction from callable type name
selftest.xx	Main interface file for dxx::selftest module
dot-xx-utils
291bb48b921d9064bc2fc2de6b7c6778ae77eeb8
src
defer.xx	A simple RAII wrapper to run stuff at the end of scope
meta.xx	Metaprogramming stuff
option.xx	Heap-allocated optional type
ranges.xx	Utility code that helps working with ranges
traits.xx	Type traits and concepts
utils.xx	The main interface file of the dxx::utils module