Open Source Credits

starring — the engines

GMP Torbjörn Granlund GNU Multiple Precision Arithmetic LGPL

MPFR Paul Zimmermann Multiple-precision floating point LGPL

MPFI Nathalie Revol · Fabrice Rouillier Arbitrary-precision interval arithmetic LGPL

FLINT: Fast Library for Number Theory, 2026. Version 3.4.0, The FLINT team.F. Johansson. "Arb: efficient arbitrary-precision midpoint-radius interval arithmetic" Fast number theory · ball arithmetic LGPL

NTL Victor Shoup Arbitrary-precision binary floating point LGPL

Boost Christopher Kormanyos C++ libraries · decimal float BSL-1.0

server

Drogon An Tao C++ HTTP framework MIT

gRPC RPC framework Apache-2.0

Protocol Buffers Kenton Varda Serialization BSD-3

PostgreSQL · libpqxx Michael Stonebraker · Jeroen Vermeulen Database · C++ client PostgreSQL · BSD-3

OpenSSL Eric A. Young · Tim Hudson TLS / crypto Apache-2.0

supporting cast

Flex · Bison Vern Paxson · Robert Corbett Lexer · parser generators · the expression grammar BSD-2 · GPL-3 + exception

spdlog · fmt Gabi Melman · Victor Zverovich Logging · formatting MIT

yaml-cpp · JsonCpp Jesse Beder · Baptiste Lepilleur Config · JSON MIT

xxHash Yann Collet Hashing BSD-2

ICU Unicode Unicode License

this website

Hugo Steve Francia Static site generator Apache-2.0

Inter · IBM Plex Mono Rasmus Andersson · Mike Abbink Typefaces OFL-1.1

co-written with

Claude AI pair programmer — SaaS infrastructure Anthropic

Flupke68 Creator — the maths, the engines & the product Human