JQueryUI at Ember upgrade

After upgrade and dismissing Bower as recommended: Is there a way to include JQueryUI into an Ember project without using Bower? My project depends heavily of JQueryUI dialogs.

$ ember -v
ember-cli: 3.3.0  
node: 8.11.3  
os: linux x64  

Do I have to reintroduce Bower into my project? Like in this old Using jquery in Ember-cli advice?