Package managers

I want to pick an open-source project for installing code libraries and developer tools. Below is a list from Open Source Everything (CC BY-SA 4.0), in the order its website shows it. The order is a starting point, not a verdict. - pnpm: pnpm is a tool that downloads and manages the ready-made code pieces that software projects rely on. It is for programmers, and it saves disk space by storing each piece only once. [Advanced setup; Windows · Mac · Linux · Android; replaces fully; MIT; https://github.com/pnpm/pnpm] - Bun: Bun is a single program that runs, tests, and installs code written in JavaScript and TypeScript, a popular web programming language. It is aimed at software developers who build websites and apps. [Advanced setup; Windows · Mac · Linux · Android; replaces fully; MIT; https://github.com/oven-sh/bun] - uv: uv is a free tool that installs and manages Python code libraries, Python versions, and command-line programs, and runs Python scripts. It is aimed at programmers who work with Python and want faster setup. [Advanced setup; Windows · Mac · Linux; replaces fully; Apache-2.0; https://github.com/astral-sh/uv] - Homebrew: Homebrew is a free tool that installs and updates developer tools and libraries on macOS and Linux from the command line. It is aimed at programmers and IT people who want a simple way to manage software packages. [Advanced setup; Mac; replaces fully; BSD-2-Clause; https://github.com/Homebrew/brew] - Nix: Nix is a collection of over 140,000 software programs that can be installed with a tool called Nix, along with a Linux computer system built on it. It is aimed at people who want to install, configure and maintain software in a reliable, repeatable way, including programmers and system administrators. [Advanced setup; Linux; replaces fully; MIT; https://github.com/nixos/nixpkgs] Setup rating: "Easy setup" means you can install it like a normal app, use it in a browser. "Advanced setup" means you must run it on your own server or use the command line, or it is a tool for developers. Full details: https://opensourceeverything.org/data/groups/package-managers.json Before recommending anything, ask me these three questions (one at a time, in plain words): 1) Which device or devices will I use it on (Windows, Mac, Linux, Android, iPhone)? 2) How comfortable am I with technical setup: only installing apps from a store, happy to follow a step-by-step guide, or comfortable with servers and the command line? 3) What is my budget: free only, or willing to pay for hosting or support? Then recommend one to three projects from this list only, and for each say why, using how fully it replaces the app, its setup rating, and the devices it runs on. If nothing on the list fits me, say so plainly instead of stretching.

Read the list of open-source projects at https://opensourceeverything.org/data/groups/package-managers.json. Compare it with my project or idea below. Tell me which projects overlap, what I could reuse instead of rewriting, and what mine does that none of them do. My project or idea: