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The updater launches the NSIS installer with /UPDATE and then exits the
app, but a WebView2 app takes a moment to die and the template only
sleeps 500 ms after its own kill before copying — so the copy raced the
old process ("Error opening file for writing: cinny.exe"), and Ignore
left the old exe in place.
A NSIS_HOOK_PREINSTALL now, on /UPDATE only, polls until cinny.exe can
really be opened for writing (every 250 ms, up to 15 s), then lets the
template carry on. Checked under Wine with a real running exe: without
the hook the copy fails; with it the installer waits out the remaining
~2.8 s and copies; a manual install (no /UPDATE) doesn't wait; a stuck
process hits the 15 s cap and falls through to the template's own
running-app handling.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PPmy3tPq869XDW4njjVaKA
Cinny desktop
Cinny is a matrix client focusing primarily on simple, elegant and secure interface. The desktop app is made with Tauri.
Download
Installers for macOS, Windows and Linux can be downloaded from Github releases. Releases are signed with a Ed25519 public-key.
| Operating System | Download |
|---|---|
| Windows | Get it on Windows |
| macOS | Get it on macOS |
| Linux | Get it on Linux · Flatpak |
Decoded public key:
RWRflTUQD3RHFtn25QNANCmePR9+4LSK89kAKTMEEB4OKpOFpLMgc64z
To verify release files, you need to download minisign tool and decode the .sig file before running:
minisign -Vm RELEASE_FILE.msi.zip -P RWRflTUQD3RHFtn25QNANCmePR9+4LSK89kAKTMEEB4OKpOFpLMgc64z -x SINGATURE.msi.zip.sig
Local development
Firstly, to setup Rust, NodeJS and build tools follow Tauri documentation.
Now, to setup development locally run the following commands:
git clone --recursive https://github.com/cinnyapp/cinny-desktop.gitcd cinny-desktop/cinnynpm cicd ..npm ci
To build the app locally, run:
npm run tauri build
To start local dev server, run:
npm run tauri dev
Languages
Rust
93.1%
JavaScript
3.6%
C
1.4%
Shell
1%
NSIS
0.9%