Tesses Framework

Features

DateTime, TimeSpan
VFS (polymorphic filesystems) (Mountable is kind of broken)
BitTorrent file generation, bencoding
Http Client/Server
Json
Simple SMTP client
Environment variables (cross platform), user special folders (also cross platform, using sago/platform-folders)
Sqlite3 (embedded into this library)
Process API (for windows/mac/linux/probably bsd)
Polymorphic byte streams (for files/network/memory)
C/C++ header generator for embedding files
A console api which works on windows/mac/linux (even before windows 10, tested on 8.1 and works), with password entry, readline, partial vt100 emulation for win32, colors, raw/cooked modes and terminal list (for somewhat primitive interactive tuis, it does scroll though, pages)
Thread pool and threading
Basic arg parser
Uuids
Lazy initializable type
Unicode support, (I need to do better validation, I know, only really used for windows and parsing json)
EventLoop
Basic crytography using mbedtls
a LCG Random number generator (do not use for crypto, use it for non security things like number guessing games and stuff, where rand would be ok)

Linux
Windows (with mingw and static linked for sure)
MacOS
FreeBSD (including GhostBSD)
NetBSD
Wii (using libogc2, may be broken)
Switch (using libnx, may be broken)
Android (kinda, uses legacy and hardcoded /sdcard api unless you use TF_AllowPortable(std::string))

NOTE: if platform folders is disabled tessesframework uses the path /TF_User for special folders (except for android which it uses /sdcard)

Install mbedtls (use sudo apt install libmbedtls-dev on debian) for TessesFramework
Follow the commands bellow

git clone https://git.tesses.org/tesses50/tessesframework
cd tessesframework
mkdir build 
cd build
cmake -S .. -B .
make
sudo make install

HodwardHinnart's date (in folder src/HodwardHinnart_date, modified tz.cpp to point to correct header)
PlatformFolders (in folder src/Platform/sago, modified to conditionally disable for GEKKO, NX etc)
Sqlite 3 (in folder src/Serialization/sqlite, modified for GEKKO, NX etc, uses the amalgamation)