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Roc is a statically typed, functional programming language built around immutable-by-default semantics, exhaustive pattern matching on tag unions, and a type system that combines optional explicit annotations with full compile-time type inference. Its core identity centers on correctness and expressiveness, using tagged unions for error handling with a question-mark operator for early error propagation, and a trailing-bang naming convention that makes side-effect boundaries syntactically visible at every call site. The language distinguishes itself through a platform-based I/O abstraction tha

Beancount is a plain-text double-entry accounting system. It enforces zero-sum transactions, organizes accounts into a hierarchical five-type tree, and verifies balances at specific dates using precision-derived tolerances. Transactions are recorded in plain-text files with a strict syntax that supports currency-specific rounding, automatic interpolation of missing amounts, and comprehensive metadata including tags, links, and payee annotations. Beyond core bookkeeping, Beancount offers investment portfolio tracking with lot-based cost basis management, configurable booking strategies (FIFO,

fast-json-stringify is a high-performance JSON serialization library that uses JSON Schema to compile optimized functions for converting JavaScript objects into strings. It serves as a schema-based JSON serializer that generates specialized serialization logic to outperform standard stringification methods. The project provides capabilities to export standalone serialization code to files for direct execution and supports schema reference resolution to eliminate logic duplication. It allows for the deactivation of character escaping for trusted data to reduce overhead and includes specific op