Subtitles and dubbing

I want to pick an open-source replacement for Rev, Descript, Kapwing (making, timing and translating subtitles and voice-overs). 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. - Aegisub: Aegisub is a program for making and timing subtitles for video. It is aimed at people who add subtitles to videos. [Easy setup; Windows · Mac; replaces partly; BSD-3-Clause; https://github.com/TypesettingTools/Aegisub] - Gaupol: Gaupol is a desktop program for creating, editing, translating and timing subtitle files so they match a video. It is meant for people who make or adjust subtitles on their own computer. [Easy setup; Linux; replaces partly; GPL-3.0; https://github.com/otsaloma/gaupol] - WhisperX: WhisperX is a tool that turns spoken audio into written text, with timestamps for each word and optional labels for who is speaking. It is aimed at programmers and technical users who run it from the command line or in Python code. [Advanced setup; Windows · Mac · Linux; replaces partly; BSD-2-Clause; https://github.com/m-bain/whisperX] 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/subtitles.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/subtitles.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: