I build a PWA using Angular 9 which can be seen here and I implemented an beforeinstallprompt event handler so as to offer the user a way to install the PWA as
encrypted-shared-preference
lasso-regression
fiware-cygnus
logical-decoding
directive
covering-index
flutter-positioned
scopeguard
data-management
angular-config
spannable
bing-api
material-dialog
delphi-xe6
bifunctor
angular-local-storage
bytebuffer
google-compute-api
literals
guice-3
jsonlite
shopify-storefront-api
idref
uiviewanimationtransition
crdt
save-image
toast
xposed-framework
std-span
radcombobox