Pick your system, then either download the installer or run one line in the terminal.
The usual way. Download the file and open it.
PowerShell
irm https://download.duenote.app/install.ps1 | iex
Duenote is not signed with an Authenticode certificate. Windows marks anything a browser downloads, and SmartScreen turns that mark into the “Windows protected your PC” wall. PowerShell does not mark what it fetches, so that prompt usually never appears. It is the same trust decision you would make by clicking “More info → Run anyway”, made up front.
Windows 10 or later, 64-bit. Installs for your user only, into %LOCALAPPDATA%\Duenote — no administrator prompt.
The usual way. Download the file and open it.
Terminal
curl -fsSL https://download.duenote.app/install.sh | bash
macOS on Apple silicon. The .dmg installs by dragging Duenote into /Applications; the command puts it there for you — set DUENOTE_DEST to choose somewhere else.
The usual way. Download the file and open it.
Terminal
curl -fsSL https://download.duenote.app/install-linux.sh | bash
Nothing blocks an unsigned app on Linux, so the command saves you nothing but the trip to find the current version number — and the trip to work out which of the three files is yours. It picks the format from what your system already has, then hands the package to apt, dnf or zypper.
x86_64. The .deb and .rpm need sudo to install; the AppImage needs neither root nor a package manager, and may need libfuse2 to start.
Version 0.7.11