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Firecracker: Secure and fast microVMs for serverless computing

firecracker-microvm.github.io Software & code Software projects Software engineering Candidate
Screenshot of firecracker-microvm.github.io captured 2026-07-20
Page preview · captured 2026-07-20

Resurfaced independently across 6 calendar years, with breakout response in 2 of them.

submissions
9
submitters
9
observed span
2018–2025
peak thread · 103 comments
425 pts
latest 20+ return · 2021-10-17
176 pts

Submission timeline

2007–2026

One slot for every year since HN launched. Height is that year's peak points; orange marks a 100+ point or 50+ comment breakout. Select a bar to open its strongest thread.

First comments on top threads

HN comment order

Firecracker is great We use it to run fleets of fast booting vms at https://fly.io. It’s really the best OSS to come out of Amazon.

mrkurt·425-point thread·

I bookmarked this about firecracker's internals in HN in the past https://www.talhoffman.com/2021/07/18/firecracker-internals/

tough·176-point thread·

More discussion here: https://news.ycombinator.com/item?id=18539532

mcrute·5-point thread·

firecracker would be nice if it weren't an aws tool focused solely on performance in their particular environment. support for qemu (non kvm) would allow to use it as a safety sandbox on random processes like qubes but lighter.

The first top-level comment from each of the four biggest threads, in HN’s own order. Excerpts are shortened; open a comment for full context.

Breakout years
2

100+ points or 50+ comments

Total points
622

reference only — not used in Hall rules or ranking

Total comments
166

reference only — not used in Hall rules or ranking

Every submission

DateTitle as submittedByPointsComments
2018-11-27Firecrackerleef51
2018-11-27AWS open sources FireCracker: Secure and fast microVMs for serverless computingpritambarhate31
2018-11-28FirecrackerBerislavLopac20
2018-11-29Firecrackergodelmachine20
2020-03-07Firecracker: Secure and fast microVMs for serverless computingFirst breakout · Best threadbased2425103
2021-10-17Firecracker MicroVMsLatest 20+ point returncolinprince17660
2023-05-01Firecracker – Secure and fast microVMs for serverless computingdoodlesdev31
2024-02-18Secure and fast microVMs for serverless computingudev409610
2025-04-08Secure and fast microVMs for serverless computinghunvreus50