BrettMayson/HEMTT — Build System for Arma 3

Description and use

**Brief Summary (2‑3 sentences)**
BrettMayson/HEMTT is a Rust‑based build system tailored for Arma 3 projects, aimed at streamlining the creation and delivery of user‑facing interfaces. By providing reusable UI components and automating common build steps, it lets developers ship front‑end features faster with less hand‑crafted code. The project is moderately popular (146 ⭐, 48 🍴) and actively maintained as of 2026‑05‑12.

**Value**

• **Accelerated UI delivery** – HEMTT abstracts repetitive build tasks (e.g., packaging, dependency resolution, and asset bundling), letting teams focus on designing the interface rather than wiring the toolchain.
• **Component reuse** – The system encourages a modular UI architecture, so visual elements can be shared across missions or addons, reducing duplication and inconsistencies.
• **Consistent front‑end pipelines** – By codifying the build process, teams achieve repeatable results, fewer manual errors, and smoother hand‑offs between designers and developers.

**Practical Adoption Path**

1. **Proof‑of‑concept** – Clone the repo, run the provided README steps on a small, isolated Arma 3 addon, and verify that HEMTT correctly builds and packages the UI assets.
2. **Component migration** – Identify a handful of existing UI modules and re‑implement them using HEMTT’s component conventions, documenting any required configuration tweaks.
3. **CI integration** – Add HEMTT commands to the project’s CI pipeline (e.g., GitHub Actions) to automatically validate builds on each commit.
4. **Team rollout** – Once the proof‑of‑concept passes, expand the usage to the full codebase, provide a short onboarding guide, and establish a “HEMTT‑owner” for ongoing maintenance.

**Production Readiness**

• **Maturity**: Medium. The tool is functional and actively maintained, but its integration points are not fully documented, and the build workflow may need tailoring to specific studio pipelines.
• **Risk mitigation**: Conduct a dependency audit (Rust toolchain, external crates) and test the build process under the target production environment (Windows, Linux, CI runners).
• **Suitability**: Ideal for prototypes, internal tools, or early‑stage missions where rapid UI iteration is valuable. For mission‑critical, large‑scale releases, allocate time for a thorough validation of the setup cost and long‑term maintenance plan before committing to production use.

Problem

BrettMayson/HEMTT helps ship user-facing interfaces with less custom UI work.

Outcome

Medium: useful for prototypes or internal workflows, with dependency and maintenance checks before production.

Workflow

• build product UI faster
• reuse interface components
• improve frontend delivery

Evidence

Build System for Arma 3

Source