A framework for developing REST APIs in Crystal influenced by FastAPI. Shard (a package of Crystal code) provides an `HTTP::Server' wrapper with a nice endpoints' handler. Good utilization of all abilities of Crystal's macro system allows users to forget about operating directly on requests and responses by generating this complex code from user-defined methods.

Universal Byte-Pair Encoding --- BPE that is designed for using on general sequences (like quantized signal and texts). The package provides *optimized* classic implementation of BPE that can be used on general sequences, and novel implementation that allows you to choose between multiple variants of encodings with top n possible tf-idf scores.

Implementation of neural network modules for discrete wavelet transform (DWT). Package provides PyTorch modules for 1D and 2D DWT which can be trained via special loss functions.

Machine Learning Library from scratch. Provides data normalization methods, many optimization methods, linear models, decision trees, and clusterization algorithms.

Little Julia projects and guides in Pluto.jl notebooks.

Laurent polynomials with basic arithmetic, evaluation and substitution. Library is useful for wavelet analysis and was developed during a university course on the subject.

Polynomial ring with basic arithmetic, parsing, formatting, prime tests and generating.

Regular Expressions library in pure C. RegExes are compiled into finite state machines and can be reused for multiple queries.

Tool for synchronization multilingual documentation in your project.

Library that proposes a new P2P network topology that enables users to connect multiple devices to one peer. The topology provides an opportunity to implement distributed applications over it.