Zwergman 

Number Theory; BigRational; Integer and Rational Math library; Combinatorics; Linq

General Purpose Library

Characters and Strings Routine and Algorithms

Jira Simple (Rest) Client

Simple MsGraph Client

Simple BitBucket Client

Confluence Rest Api Client

Conway's Game of Life

System.Threading.Channel.Reader extensions Eager Async LINQ to Objects

Sudoku Solver and Analyser

Tiny Excel Reader

Tic-Tac-Toe game. Position, Strategy and Analysis

Simple Statistics

Nim and 3-5-7 Sticks Game

Console UI routine

Simple Code Parser (Roslyn based)