Open-source alternatives to Termius

I want to pick an open-source replacement for Termius. 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. - WezTerm: WezTerm is a program that opens a window where you type commands to your computer, and it can split that window into several panes or tabs. It is for people who work in a command line, such as programmers and system administrators. [Easy setup; Windows · Mac · Linux; replaces fully; MIT; https://github.com/wezterm/wezterm] - Alacritty: Alacritty is a free program that opens a window where you type commands into your computer. It is for people who want a fast, customizable terminal and is available on Linux, BSD, macOS and Windows. [Easy setup; Windows · Mac; replaces fully; Apache-2.0; https://github.com/alacritty/alacritty] - kitty: kitty is a free program that opens a window where you type commands into your computer, a tool called a terminal. It is made for people who work in the terminal every day and want it to be fast and full-featured. [Easy setup; Mac · Linux; replaces fully; GPL-3.0; https://github.com/kovidgoyal/kitty] - Ghostty: Ghostty is a terminal emulator, the window where you type commands on a computer. It is aimed at people who use the command line, and it is installed as a regular app on macOS and Linux. [Easy setup; Mac; replaces fully; MIT; https://github.com/ghostty-org/ghostty] - tmux: tmux is a tool that lets you open several command-line windows, called terminals, inside one screen and keep them running after you close the window. It is aimed at people who work in a text-based terminal, such as programmers and system administrators. [Advanced setup; Mac · Linux; replaces partly; ISC; https://github.com/tmux/tmux] - Zellij: Zellij is a workspace that lets you split and organize many command-line windows inside one terminal session. It is aimed at programmers, system administrators, and anyone who likes working in the terminal. [Advanced setup; Windows · Mac · Linux; replaces partly; MIT; https://github.com/zellij-org/zellij] 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/terminals.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/terminals.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: