material-maker VS dialogic

Looks similar to Material Maker that works on Linux. https://github.com/RodZill4/material-maker

Material Maker. A procedural textures authoring and 3D model painting tool. Opensource. https://github.com/RodZill4/material-maker

Material Maker for example, it's shader-based and I think it makes sense to use Godot. I also made shader-making tool, it's meant for games and if I use Godot that should make it integrate well.

Procedural materials are either created in the Game engine directly, or with Tools like Adobe Substance Designer or Material Maker (free and open source, made with Godot). Material Maker exports directly to the Godot ready format .tres. Check out u/Arnklit youtube channel for a short playlist on Material Maker. If texture painting in Blender is too cumbersome for you, most game artists probably would use Adobes Substance Painter for texture painting. ArmorPaint is a Substance Painter alternative you can built yourself from source if you want to use it for free.

Standalone applications: MaterialMaker, Pixelorama, Lorien (disclaimer: i'm the author)

There is https://github.com/RodZill4/material-maker which uses it for GUI so why not?

You can get a fixed build here (you'll have to be logged in on Github): https://github.com/RodZill4/material-maker/actions/runs/756532188

Material Maker (Procedural Material Authoring)

Like Scale X and Scale Y in your case, some parameters could be transformed into inputs "out of the box" by Material Maker per user request. I made a proposal to to this https://github.com/RodZill4/material-maker/issues/178

For some context, I'm an experienced (~10 years) programmer starting to dabble in game development. I'm learning to build various systems to gain experience and understanding, and recently I was interested in developing a dialogue system with an editor similar to what Dialogic provides.

https://github.com/nathanhoad/godot_dialogue_manager https://github.com/coppolaemilio/dialogic

Use something like Dialogic or (personal recommendation) Dialog Manager.

I used a Godot plugin called "Dialogic" to create it, still working on the themes and assets, so most changes made are cosmetic.

There are two great dialogue systems available for Godot, Godot Dialogue Manager, which is geared more towards writing things in a script, and Dialogic with a nice user interface, that is more artist-friendly (though direct script editing is also available). It also has more features (at least in the new version, which is currently under development for the upcoming Godot 4 and might not be suitable for production).

Here you go. You should try RC3 with this. https://github.com/coppolaemilio/dialogic/commits/main

Dialogic 2.0 is supposed to be Godot 4 ready (according to github https://github.com/coppolaemilio/dialogic)

For your second question, try looking at existing add-ons like Dialogic either for a ready to use implementation or as inspiration for how to code your own.