Title: CPOS: a local terminal + VS Code workflow for Codeforces/CSES practice

Content:

Hi everyone,

I built CPOS, a local-first tool for competitive programming.

The main idea is to have one place for the parts of CP practice that usually get scattered across browser tabs, notes, extensions, and memory.

Tools like CPH are already very good for the editor-side workflow: capture a problem, create a file, run samples, submit, etc. CPOS is partly inspired by that workflow, but the goal is a bit broader.

CPOS has a terminal UI where you can manage practice, contests, submissions, and progress from one place.