It's still in early beta, but I've been using it for the last few weeks to run smoke tests, manage deploys, monitor systems, etc. and it's been very useful for me. I hope others find it useful as well.
There are many ways you can set up Ledge: I keep my production notes local, and use Ledge server to manage my dev environments on a per-project basis. I can then access Ledge on my phone over Tailscale whenever I need to check on something remotely. Ledge only needs SSH for remote access, so you can go simpler (or much more granular) if you like.
Built with Electrobun. Runs on Apple Silicon and iOS. Free and open source, Apache-2.0, and requires no account.
Why no Windows, desktop Linux, or Android support? I don't own devices that run them. It's on the roadmap and nothing technically prevents it from being built so contributors are welcome!