Feedthehamster technical

 https://devilsworkshop.itch.io/2d-pixel-art-isometric-road-blocks-free-sprites

PNG resource

Convoyer belt

http://popupasylum.co.uk/?p=253

Outline shader graph

 https://danielilett.com/2020-04-27-tut5-6-urp-2d-outlines/