Base:
For use with the Circuit Setup Project Box solderable protoboard. This is the board I use the most for my Wemos projects as it is big enough for 90% of projects, is reliable, and silkscreened on the back side.
Refer to https://circuitsetup.us/product/solderable-breadboard-pcb-for-arduino-esp8266-esp32-prototyping-3-78x2-2-96x56mm-5-pack
Amazon ASIN: B07HNKJNK3
Designed to be wall or surface mounted.
Accommodates microcontrollers such as ESP32, Wemos D1 Mini, etc.
Uses M3 embedment nuts for attaching the board. Board can be removed without unmounting the base.
Board sits flush in base to allow edge connectors.

Lid:
4 counterbore M3 connections. Use 20 mm standoffs to mount the board, with M3 screws for the lid.
Port for usb cable. Port sized for optional 13x27 mm oval grommet.
Attaches flush to base. Insertion tabs to align and hold lid to base.
Vented.
This is the base design I use for lids, modifying it for specific projects for needed connection ports.

Printing: recommend 15% infill. Print with supports for the lid.

If it works for you, please Like and post a Make with photo for others to see.