nowfound

Dev tools · October 2, 2022

LD

Layerfiles, Dockerfiles that build VMs

Hey HN, I’m excited to show you Layerfiles, an OSS project which gives you a single binary to build microvms using a syntax that looks like a Dockerfile. The project is currently in alpha, but it’s already able to build a VM on Linux hosts. MicroVMs are like containers, but have several upsides: - They can run on any OS, so you don’t need to run a wrapper VM like Docker Desktop does. - They also let you keep processes running during a build (RUN BACKGROUND), so you can run a webserver or build server in the background. - You can generally run them rootless without any extra configuration.…

Layerfiles, Dockerfiles that build VMs launched on October 2, 2022 with 10 votes, #1,206 of 3,153 launches that month and more than 75% of that year's launches.

In plain words

Layerfiles is an open-source tool that builds lightweight virtual machines using Dockerfile-like syntax. It runs as a single binary on Linux and allows developers to construct microvms that work across any operating system without requiring wrapper VMs like Docker Desktop. The tool supports background processes during builds, enabling users to run web servers or build servers simultaneously, and can operate rootless without additional configuration. Currently in alpha, Layerfiles offers an alternative to containers with greater portability and flexibility.

written from the facts on this page · September 2026

From the sources

In the maker’s words, at launch

Hey HN, I’m excited to show you Layerfiles, an OSS project which gives you a single binary to build microvms using a syntax that looks like a Dockerfile. The project is currently in alpha, but it’s already able to build a VM on Linux hosts. MicroVMs are like containers, but have several upsides: - They can run on any…

Does a similar job

all alternatives →
  • Slim – Build and run tiny VMs from Dockerfiles2019 · github.com · ▲389

    Build and run tiny vms from Dockerfiles. Small and sleek. - ottomatica/slim

  • Slim 2: Create VM from Dockerfile, boots in seconds (+macOS M1/Hyper-V)2022 · github.com · ▲59

    Build and run tiny vms from Dockerfiles. Small and sleek. - GitHub - ottomatica/slim at 2.x

  • Sub-millisecond VM sandboxes using CoW memory forkingMar 2026 · github.com · ▲311

    I wanted to see how fast an isolated code sandbox could start if I never had to boot a fresh VM. So instead of launching a new microVM per execution, I boot Firecracker once with Python and numpy already loaded, then snapshot the full VM state. Every execution after that creates a new KVM VM backed by a `MAP_PRIVATE` mapping of the snapshot memory, so Linux gives me copy-on-write pages automatically. That means each sandbox starts from an already-running Python process inside a real VM, runs the code, and exits. These are real KVM VMs, not containers: separate guest kernel, separate guest…

  • krunvm – Create and run lightweight VMs from OCI images2021 · github.com · ▲82

    Create microVMs from OCI images. Contribute to slp/krunvm development by creating an account on GitHub.

  • Hosting by webapp.io 2023 · webapp.io · ▲105

    Global CDN, zero config TLS, free custom domains

  • ByteNite2025 · docs.bytenite.com · ▲206

    Hi HN, I’m one of the creators of ByteNite (https://bytenite.com). We built it for developers running compute-heavy containerized workloads (AI, ETL, batch jobs) who are frustrated with the limitations of traditional serverless platforms: timeouts, cold starts, orchestration complexity, and limited runtime control. ByteNite is a serverless platform that lets you submit distributed jobs packaged as Docker containers. You define simple or complex fan-out/fan-in logic, set your hardware requirements, and we handle the rest—distributing execution across warm cloud runners (CPUs,…

More dev tools this month

the category →
  • /dev/null▲472

    a social network for devs

    Dev tools · 2d ago · dev-null.sh

  • open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

    Dev tools · 27d ago · github.com

  • Contribute to reladraw/reladraw development by creating an account on GitHub.

    Dev tools · 25d ago · github.com

  • OpenBot▲362

    Grok Bot alternative: free, local, open-source, multiplayer

    Dev tools · 22d ago · openbot.run

  • Talanoa▲340

    Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

    Dev tools · 20d ago · talanoa.email

  • CoreSpeed▲332

    One MCP for everything your agents need: apps, memory, tools

    Dev tools · 27d ago · corespeed.io

Source: Show HN post ↗ · launch text quoted in part

Launched alongside, October 2022

the whole month →
  • I3

    Hey HN, I 3d scanned the interior of the Great Pyramid / Khufu's pyramid for the Giza Project this summer and just finished the guided version to share. Would love feedback and/or problems you encounter. I used both a Leica BLK 360 and Matterport Pro 2 to do the scanning and the Matterport SDK for the web viewer. Matterport's web display with Three.js has been the most accessible to a wide audience in the past (previous iterations are in Unity and Unreal, but difficult to download over slower connections). I've been interviewing social studies teachers around the 6th grade level to…

    Dev tools · 2022 · giza.mused.org

  • Clay▲819

    Discover, organize, and deepen relationships

    Work · 2022 · me.sh

  • Last time I posted this it didn't garner much interest. There have been lots of improvements and fixes since the last release. Quick list of features: - Workspaces - Tabs - Nested Folders - Lots of context menus - Response history - Plugins - Runs fully in the browser and runs offline if necessary - Chrome and Firefox extension to bypass CORS restrictions - Desktop builds for all platforms - GraphQL support - Import collections exported from Postman and Insomnia - Simple user friendly interface I built this because I love Insomnia but wanted a portable version that I could run in the…

    Dev tools · 2022 · restfox.dev

  • 100+ newsletters ready to promote your product

    Growth · 2022

  • Profitable Micro SaaS ideas, supportive community

    Life & fun · 2022 · microsaashq.com

  • APIs are a little like the open road—always waiting, full of opportunity, but hardly utilized. So here’s America, composed of several APIs that paint a vivid, real-time picture of a good old-fashioned road trip. Get local classifieds and photos. Tune into local radio stations. Talk wit other drivers. And more. Exploring the country by car was an invaluable experience for me during my time in the states. I’ve since moved to Barcelona, and find myself missing the territory. This is my attempt at recreating the magic.

    Life & fun · 2022 · 4m3ric4.com