I think a replacement is here and I’m surprised not to hear more about it, using the Samsung Automation studio and Node red. I moved all my automations off Webcore and onto Node Red over the past two weeks. There’s a learning curve, but there was for Webcore at first too.
What’s possible in Node Red really blows Webcore out of the water. I’m doing it through a Home-assistant to Smartthings integration, but I think there is an easier way using the Samsung Automation studio https://sasm.developer.samsung.com/features
Which has an active and supported Node Red palette node-red-contrib-samsung-automation-studio-nodes (node) - Node-RED The pallette looks like it can bring all your Smartthings devices over to Node Red, where you can run all sorts of automations and link it to other devices and services.
Most run Node red locally, on a raspberry pi. Or you can pay $5 and download it from the play store and run it on an Android tablet. There appears to be a free way to have it run online I just posted about here Node-Red and Smartthings - #41 by mwav3
I can’t see Webcore working in is current format without the IDE though, and it’s future was just too shaky for me. This palette on Node Red is API based so will continue working after the IDE is phased out.