how can i setup my linksys velop without an app

First of all, connect an ethernet cable between your Velop and Router and connect your computer with the linksys velop’s wifi network. Then go the browser on your computer and type “http://myrouter.local/” in top URL bar and then hit enter. You will be redirected to linksyssmartwifi.com:52000/ui/dynamic/velop/desktop-blocking.html  page and just replace “desktop-blocking.html” with “setup.html. It will open setup page and then enter “admin” as both User Name and Password then click Log In. Now enter your ssid and password as per your preferences  and then click on setup node. Then  click on  I’m Done Adding Nodes. Now go to your computer to connect to the new SSID  that you have created. Now go to your browser and type that address again which is :- https://myrouter.local   & you will get redirected to http://linksyssmartwifi.com:52000/ui/dynamic/velop/desktop-blocking.html.
Just click on velop logo and enter router  password (default is admin). Click on the CA link on right-hand corner of the screen. Then Go to Connectivity then click on Velop Setup to set the SSID and Password of your Velop network and hit the Setup Node button.  To  add a Secondary node, turn ON a second node and wait for the solid purple light. After that connect an ethernet cable between the primary node and secondary node and when  the light indicator will start blinking and turns solid blue, this means your Secondary node is ready. You can now disconnect the Secondary node from the Primary node and take it to the desired location of your choice.
Click on Done Adding Nodes.