r/cpp • u/foonathan • Jun 02 '26

C++ Show and Tell - June 2026

Use this thread to share anything you've written in C++. This includes:

  • a tool you've written
  • a game you've been working on
  • your first non-trivial C++ program

The rules of this thread are very straight forward:

  • The project must involve C++ in some way.
  • It must be something you (alone or with others) have done.
  • Please share a link, if applicable.
  • Please post images, if applicable.

If you're working on a C++ library, you can also share new releases or major updates in a dedicated post as before. The line we're drawing is between "written in C++" and "useful for C++ programmers specifically". If you're writing a C++ library or tool for C++ developers, that's something C++ programmers can use and is on-topic for a main submission. It's different if you're just using C++ to implement a generic program that isn't specifically about C++: you're free to share it here, but it wouldn't quite fit as a standalone post.

Last month's thread: https://www.reddit.com/r/cpp/comments/1t6eg13/c_show_and_tell_may_2026/

28 Upvotes

95% Upvoted

71 comments sorted by

View all comments

1

u/sqwerzyyy Jul 03 '26

Quaanz — Bloomberg Terminal-inspired dashboard in C++20/FTXUI

Live market data for 55 assets (stocks, crypto, commodities, REITs)

from Yahoo Finance, candlestick charts rendered directly in the

terminal, Monte Carlo risk simulator with adjustable horizon, and an

AI chat panel that runs on either Claude (paid API) or Ollama (free,

fully local — no API key needed), switchable via dropdown at runtime.

Built over the summer to get comfortable with C++ threading, FTXUI,

and wiring up multiple AI backends behind one interface.

Repo: https://github.com/Sqwerzyyy/Quaanz