packages/waybetter/windows/installer.nsi (shipped in the npm package) is the NSIS
template wayBetter for X used, made generic: an app that was renamed keeps its
registry keys by defining WAYBETTER_LEGACY_NAME in its installer hooks; without it
the keys are Tauri's defaults.
Run by hand (no /UPDATE) it installs only when it is newer than what is installed.
With the same or a newer version installed it installs nothing, opens the installed
exe (the single-instance guard shows the running window) and exits 0, so an old
setup can no longer replace or downgrade an install the updater has moved on.
/FORCE reinstalls the same version, /NORUN is kept, the updater path is unchanged.
create-waybetter apps use the template (bundle.windows.nsis, per-user).
wayBetter for X's page is waybetter.fyi/x in the READMEs.
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