Summary

I needed something that held a 1M aluminum corner channel for a lamp. I used a NodeMCU ESP32 as the controller
https://www.aliexpress.com/item/1005004571486357.html

I used some black aluminum 90-degree corner LED channel. All the channel I have purchased have been the same size, 16 mm on both sides, hopefully any 16 mm channel will fit.

I used a 144LED/M IP30 WS2812B strip and a 5V 3A power supply, but if you want it brighter you'll need an 8A supply. WLED controls the current to the LEDS, so I just set it to 2000mA and the 3A can handle it. Hopefully, the LEDS should last longer at lower power.
https://www.aliexpress.com/item/1005004289391906.html

I used brass inserts and M3 screws to attach the base.
M3 5MM OD brass insert
https://www.aliexpress.com/item/4000585933306.html

M3 X 10mm Screw with flat head
https://www.aliexpress.com/item/1005003665982000.html

Print flat side down, I only used support for the internal lamp holder hole lip.

I made a second version that uses a USB-C plug. Use a wire tie and some hot glue to secure it to the bottom.
https://www.aliexpress.com/item/1005003826681349.html

I cut a hole for a 16MM (5V illuminated Locking button to cut the power, 5V illuminated momentary button to change WLED settings.)
https://www.aliexpress.com/item/32956631402.html

You can use the unused end of the WS2812B (female end at the end of the arrows) to make an easy connection point for the strip.
Pin D3 is the default place for switches in WLED.
Pin D4 is the default for the signal line (center green wire).

WLED install video
https://www.youtube.com/watch?v=TOEnFKLm9Sw&t=46s

Of course, if you want to be boring you can just use white LED strips and make a boring lamp, so I added simplified tops with and without buttons for boring people.