Smol machines
subsecond coldstart, portable virtual machines
Details
- External ID
- 47808268
- Source
- HN
- Company
- —
- Product
- Smol machines
- Website domain
- github.com
- Launched
- April 17, 2026
- Cohort
- —
- Upvotes
- 499
- Upvotes percentile
- 0.9910025706940874
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:26 p.m.
- Updated at
- Sept. 7, 2026, 9:26 p.m.
Enrichment
- Theme
- systems tools and desktop utilities
- Vertical
- Horizontal
- Function
- Model & infra
- Audience
- Developer
- AI stance
- Not AI
- Project type
- Commercial product
- Normalized one-liner
- lightweight portable virtual machines
- Manually corrected
- False
Could you build this?
No Sub-second coldstart portable virtual machines require deep hypervisor, microVM (e.g., Firecracker/KVM), and low-level kernel virtualization expertise.
What it would actually take: The stack likely uses Linux KVM, Rust (similar to Firecracker or Cloud-Hypervisor), and custom minimal guest kernels/init systems optimized for instant boot. The hard part is achieving sub-second boot through memory snapshotting/restoration, stripped-down ACPI/device trees, and lean rootfs loading. This requires systems programming expertise in Linux virtualization internals, page-fault-driven memory restore, and network tap virtualization.
Discussion
20 comments analyzed.
Competitors mentioned: Firecracker, QEMU microVMs, krunvm, Docker, WASM
Concerns raised: Firecracker doesn't support macOS hosts, Init system behavior is weird in krunvm, Docker daemon removed from original design, Fixed instance size limits scalability options, Not portable across platforms like QEMU dumps
Feature requests: Add Docker support back to the tool, Add ability to configure volumes after VM creation, Support macOS host environments, Replace 'docker run --rm' workflow
Competitors
Other products that read as similar to this one — 1320 launches clear the similarity bar, closest 8 shown.
Attention rank: #11 of 1321 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 168 days after the earliest competitor.
- Zeroboot · hn · 2026-03-17 · 20 upvotes · similarity 0.65
- Kudu · hn · 2026-08-26 · 5 upvotes · similarity 0.58
- Nønos · hn · 2025-12-23 · 9 upvotes · similarity 0.56
- A 10KiB kernel for cloud apps · hn · 2026-01-14 · 68 upvotes · similarity 0.56
- A Highly Available Distributed Router for Global Realtime AI · hn · 2026-06-08 · 9 upvotes · similarity 0.54
- s2.dev: Streams as a cloud storage primitive · yc · 2025-11-08 · 63 upvotes · similarity 0.54
- jiopc-session-keeper · github · 2026-09-20 · 11 upvotes · similarity 0.54
- Hinode · hn · 2026-08-04 · 7 upvotes · similarity 0.54
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a model & infra tool for Fintech yet.