> I generate a lot of files for various projects. Some of my projects are professional software and hardware development projects, or marketing and design projects, for ongoing or one-off customers. Others are personal video, welding, making, building, etc projects. Lot's of stuff to keep organized!

Funny, I have the same problem, and use a similar solution for a long time now.

> What we need is a cross platform, cross UI (GUI and CLI interface), and cross file system solution. It has to work on thumb drives with ExFAT filesystem.

Why cross platform and cross filesystem? Why specifically ExFAT?
Is this a personal Project or something Community-driven?

> Bin Pointers - Pointers live in one part of the tree and point to a Bin in another part of the tree. Just like Aliases on MacOS, Shortcuts on Windows, or Soft Links on Linux, but cross platform and automatically self updating! If you move the target Bin, the Pointer will find where you moved it and update itself!

Many Buzzzwords. Also, are Windows-Shortcuts and Symbolic Links really the same? AFAIK Shortcuts are on desktop-level, while Symbolic Links are on Filesystem-Level. And Windows&MacOS have links on Filesystem-Level too.

> The base file organization unit in Bin Finder is a File Bin. A Bin is just a folder with a Bin Description File
> Because a File Bin is just a special type of folder, it can contain any number of files and sub-folders inside of it, including other Bins and Pointers to other Bins!
> If you need to tag or point to an individual file, it can be wrapped individually in a Bin. Since most human endeavors of any substance produce multiple files, this use case is relatively uncommon

Looks kind complicated... What's the point of nested bins?

My own solution is similar, but simpler. I use a central folder $HOME/HUB were I collect my sources (Local Drive, USB-Stick, NAS...). Each source has a subhierachy according to some personal reasons, with Content-Folders being on a fixed level. Each content-folder has #Tags in their name, and I use a simple script with rules to generate Hierachies of filesystem-links in my home-folder. I run the script occasionally when I change something, and thats it.

I also have a handful scripts and build a little GUI for managing code-projects, but overall it a very stable and straighforward solution. I mostly use a filemanager for 10+ years now, and overall it works very well. Though, I use it on Linux, were such things are common and easy. Having certain fixed paths for certain is also preferable, so my solution must be working on it's own, without a gui.

> When you click on a Pointer to the Project Bin you just moved, the system will first check where it has seen the bin last. If the system can't find the Bin in that location, it will quickly rescan all of your Trees. If the Bin is found in another location, the system will update the pointer and open the Bin

This is pretty much the same as what Windows Shortcuts are doing.

This overall reads like you reimplement Windows Shortcuts, but for Multi-sourcesand with a focus on Project-Workspaces-Handling? How would this work on CLI? You can't click them there?

> I have most of the UI and workflows worked out in my head pretty well, but I find myself in a "paralysis by analysis" situation.

So you have not used it yet? Then why not start using it? Start as simple as possible an experience the basic concept in your daily life. I know from my own system that things evolved over many years and adapted to certain demands from my own life and work. Organizing is very personal an i won't be always work as plannend.

> GUI vs. CLI - I want to support both. But should it be a CLI first application that's then wrapped with GUI?

What is the purpose of the GUI? How would you use it daily? What's the purpose of CLI, How do you aim to use that? Waht ability do you even have? Are you a coder and could implement something fast? Or would you start by zero and would invest a juge a mount of time for this?

> Language / UI Library Selection - Here the choices appear to be Electron with JS vs. QT plus either Python, C++, or Go.

I use Python and Qt. It's working well for this, as Python has a good focus on filesystem and cli-tooling, while PyQt allows fast growth into frontends. I would at least start with this for your first generation, till you have figured out what you really need. Start with cli, evolve into a lib, and build the GUI. Then you can still optimize with Go or Electron, depending on how it goes.