Hey everyone, not sure if this is the right place to post, but here it is,

I built a free desktop app called SimShare that lets you sync your Sims 4 mods, CC, and save
files with friends directly over your local network.

The backstory: My girlfriend has 4000+ mods and we play together. Keeping our mod folders in sync
was a constant headache — figuring out what changed, copying files over USB, uploading to cloud
storage. It took forever. So I built a small tool for just the two of us to sync directly between
our computers. It started as a simple one-to-one connection, but as I kept working on it I
realized other people probably deal with the same thing, so I expanded it into a full app.

How it works:
- One person hosts a session, others connect over the same WiFi/network
- SimShare scans both mod folders and compares file hashes (SHA-256)
- It shows you exactly what's different — files only you have, files only they have, and
conflicts where the same file exists but is different
- You choose what to sync — keep yours, use theirs, or keep both. Per file.
- Files transfer directly between computers (peer-to-peer), nothing goes through a server or
cloud
- Only transfers what's actually different, identical files are skipped

Features:
- Mods, CC (.package files), and save files
- Multiple friends can connect to one host at the same time
- Mod profiles — snapshot your current setup, export/import as a file
- Auto-discovery — finds other SimShare users on your network, no IPs needed
- Real-time activity log so you can see what's happening
- Works on Windows, macOS, and Linux

What it doesn't do:
- It never modifies your existing files unless you explicitly choose "Use Theirs" on a conflict
- It doesn't sync tray files (yet)
- It doesn't work over the internet by itself, but it works through Tailscale or any VPN that
creates a virtual LAN

It's completely free and open-source (MIT license). No accounts, no ads, no cloud.

Download: https://github.com/stixez/SimShare/releases/latest
Website: https://stixez.github.io/SimShare
Source code: https://github.com/stixez/SimShare

Built with Tauri (Rust backend, React frontend) if anyone's curious about the tech side.

Would love to hear feedback, bug reports, or feature requests. Especially from people with large
mod folders — that's exactly what this was built for.