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Show HN: Smol machines – subsecond coldstart, portable virtual machines (github.com)

499 points by binsquare · 135 days ago · 152 comments on HN

Article summary

Smol Machines is a project that aims to provide a lightweight, portable, and self-contained virtual machine with subsecond cold start times. It allows users to manage and run custom Linux virtual machines locally with elastic memory usage and cross-platform support. The project provides a CLI tool for creating, running, and managing virtual machines, as well as a Smolfile for declaring environments. Smol Machines is designed to be a replacement for Docker containers, with a focus on simplicity and ease of use.

Main themes

  • Virtual Machines
  • Container Replacement
  • Subsecond Startup
  • Portability
  • Security
  • Sandboxing

What commenters say

  • The project's goal of providing a lightweight and portable virtual machine with subsecond startup times is a significant improvement over traditional virtualization solutions.
  • Some commenters believe that the project's focus on simplicity and ease of use makes it an attractive alternative to Docker containers.
  • Others argue that the project's lack of support for certain features, such as live migration, is a significant limitation.
  • There is a need for a solution that can provide a seamless and efficient way to migrate virtual machines between hosts without downtime.
  • The use of AI and machine learning tools, such as LLMs, can significantly accelerate the development process, but may not be effective for tasks that require novel solutions.
  • The project's design and implementation, including the use of a custom kernel and hypervisor, are key to achieving its performance and security goals.
  • Some commenters are concerned about the potential security implications of using a virtual machine that is designed to be lightweight and portable, and argue that additional security measures may be necessary.
  • The project's ability to provide a consistent and reproducible environment across different platforms and hosts is a significant advantage over other virtualization solutions.