A small fabric mod that makes vanilla developer blocks easier to access, with a dedicated creative tab and a structure void utility.
Curseforge : https://www.curseforge.com/minecraft/mc-mods/accessible-developer-blocks
By default set to F4 it allows you to toggle structure void between visible and invisible, when visible they will act like Barrier blocks and have their hitboxes the size of a full block, when hidden their hitbox is removed and their particles stop showing.
Contains the 4 types of command bloks, structure and jigsaw blocks, the debug stick, barrier blocks and structure void. Aims to make all of these features easier to access in creative.
For my eye's sake and sanity.
You can download this mod's source and set it up in your own environment,for setup instructions please see the fabric wiki page that relates to the IDE that you are using.
This template is available under the CC0 license. Feel free to learn from it and incorporate it in your own projects.