I Want to Build a Sandboxed, Cross-Platform Software Distribution System

A developer shares their vision for UVM, a minimalistic custom virtual machine designed to be a sandboxed, cross-platform software distribution system. The goal is to combine the convenience of package managers like apt/brew with mobile-style capability-based sandboxing and true cross-platform portability. UVM uses a simple instruction set targeting x86-64, arm64, and RISC-V, exposes only low-level APIs (no FFI), and packages programs as single self-contained files. The author compares UVM to existing solutions (Docker, AppImage, Flatpak, JVM, Wasm, browsers) and explains why none fully solve the combination of portability, sandboxing, and ease of use. A working prototype exists with sound, graphics, and networking APIs, and Doom has been compiled to run on it via a Clang backend. Next steps include switching to a register-based interpreter, implementing a JIT compiler, and designing the permission model. The post solicits community feedback and contributors.

Nguồn: https://pointersgonewild.com/2026-07-14-sandboxed-cross-platform-software-distribution. 8sync News chỉ tóm tắt và dẫn link; bản quyền nội dung thuộc tác giả và nguồn gốc.

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Building a Clang Backend and Porting Doom to my Custom Bytecode VM

A developer revived their custom stack-based bytecode VM (UVM) and built a Clang/LLVM IR backend for it using AI assistance. After Claude Opus wrote an LLVM IR parser in Rust in ~20 minutes, a working compiler was completed in days. The author then ported Doom to run on UVM using Claude Code in about an hour, optimizing it from ~27 FPS to ~86 FPS through palette lookup tables and improved frame buffer upsampling. The project is open source, and future plans include refactoring UVM to use a register-based instruction set for better performance.

#general-programming#rust