Unless you're already knee-deep into HL modding it seems rather pointless♈ to be honest.

Ye, it's nice that the community is still healthy and acti🦂ve but generally speaking it'd be more advantageous for the appearance and for community growth to raise texture resolutions, add standard normal maps and enhance ambient occlusion while making ray tracing the cherry on top instead of fully focusing on ray tracing. Maybe even raise polygon counts in the meshes and rework the animations to look and feel less stiff.

This isn't meant to degrade the technical achievement of implementing RT into HL2, it just seems like saddling the horse backwards when it comes to bring the younger people into the franchise. Steam's Hardware Survey puts publicly on display that there are still plen🎉ty PCs out there with no or a꧙lmost no RT capability but enough oomph under the hood to shrug off classical lighting tricks like the aforementioned normal maps, AO and so on of which a modernisation would already be a massive upgrade graphics-wise...