Juste Tools is where I make the Unity tools I always wished existed: clean APIs, solid architecture, and docs that actually help.
Each one is shaped by real production experience at top mobile studios, and built to be a pleasure to use.
Assets
Infinite Value
Numbers of any size and precision in Unity. Behaves like a primitive type, works in real-time, and is fully configurable. Perfect for incremental games, RPGs, and monetary systems.
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Generic Arithmetic
Arithmetic and comparison operations in generic C# classes. Works with any value type, no setup required; supports source generation for AOT-safe custom types.
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Auto Singleton
Add [Singleton] to any class and the asset handles everything: asset generation, cleanup, polymorphic access, and inspector integration.
About Me
I'm Lucas Sarkadi, a Unity developer based in France.
I started coding as a kid, tinkering for the joy of it, long before I knew it could be a career. That curiosity eventually led me through an engineering school and a game development program, then into the industry, where I spent years building in-house tools and SDKs at studios like Voodoo and Homa, two of the biggest names in casual gaming.
Along the way I kept coming back to the same thing: I love making tools.
There's something deeply satisfying about solving a problem once, cleanly, so that no one ever has to fight it again. That's what Juste Tools is about.
Outside of work you'll usually find me at a game jam, behind a drum kit, or lost in a good sci-fi or horror story.
I believe good tools, like good games, come from people who genuinely care, and I try to bring that care to everything I publish here.
My Stance on AI
I use Claude Code as an AI assistant throughout development, but I have a deliberate stance on how. Three principles guide it:
Against alienation.
I'm wary of the current trend of using AI in a way that alienates programmers from their craft. Making tools is the opposite move: a way to stay close to the work, to keep solving real problems and building real things rather than outsourcing the thinking. AI here is in service of making stuff, not a substitute for it.
Ethical by design.
I see tool building as a way to make AI use more responsible. The effort is spent once, carefully and under human supervision, so that everyone who uses the tool afterwards leans on AI less themselves. One reviewed, intentional solution does the work that would otherwise take countless scattered prompts.
Human-facing, human-made.
The public APIs, the intended workflows, the documentation phrasing: these carry the judgment and care that decide how it actually feels to use a tool, and that responsibility stays with me. AI helps me move faster on the inside; the surface you touch is mine.
Support
If one of my tools helped you out, a coffee is a kind way to say thanks. No pressure at all, but it really means a lot. 🙂
Leaving a review on the Asset Store helps too, even a critical one: it tells me what to improve and helps others find the tools. 🙂
Contact
Questions or issues? Reach me at justetools@gmail.com, or follow my work on the Unity Asset Store.