Muzata led channel off Amazon.

Muzata 10Pack 6.6FT/2M U Shape... https://www.amazon.com/dp/B074K1FKRM?ref=ppx_pop_mob_ap_share

Mounted mine like this

https://preview.redd.it/cju0ty47pgla1.jpeg?width=3072&format=pjpg&auto=webp&v=enabled&s=fcea3a6d0e180374571010e92aee9deb7a83c37a

I like the look of uninterrupted light vs visible pixels, what are thoughts on using something like this Muzata 10Pack 6.6FT/2M U Shape LED Aluminum Channel with an addressable LED strip inside?

I have these exact channels on my house. Somewhat close to what you have, but angled peaks on the left lower and upper. If you get these, snapping in the diffuser cover can be tricky, the key is lubrication on the outside edges of diffuser cover. I sprayed my fingers with a touch of silicone spray and ran my fingers down the entire length. Slides right in to the channel. Took me a long time to figure that out, only when working after a rain storm, my fingers were wet and they went in easier. I went back and left an Amazon review with this same information as other people were having issues.

I feel that strips are superior to pixels in straight lines. Unless you're looking for the low resolution that pixels give.

https://www.amazon.com/gp/product/B074K1FKRM?ie=UTF8&psc=1&linkCode=sl1&tag=paonpa-20&linkId=33eb3e911c7a6bdbd36098cee4bac191&language=en\_US&ref\_=as\_li\_ss\_tl