NetBird
NetBird's second v0.82 candidate keeps the MySQL removal and deprecates Rosenpass.
Comparison · Infra & APIs
Firecracker vs Hatchet
A side-by-side editorial comparison of Firecracker and Hatchet — release velocity, themes, recent moves, and the top alternatives to consider.
Shared themes:serverless
Firecracker vs Hatchet: at a glance
What is Firecracker?
Firecracker adds PCI device hotplugging and virtio reset — microVM lifecycle management takes a meaningful step.
Firecracker is Amazon's open-source microVM hypervisor, used as the isolation layer for Lambda and Fargate. Recent releases have been focused on expanding the microVM lifecycle model: v1.16.0 added developer preview PCI virtio device hotplug (block, pmem, net), v1.17.0 adds virtio device reset support and richer metrics emission (instance ID and operator-defined properties). The release cadence has accelerated — multiple patch releases within the same minor version cycle.
What is Hatchet?
Hatchet takes durable tasks serverless, with handlers for Cloudflare Workers, Vercel and Node.
Hatchet's new @hatchet-dev/serverless 0.1.0 runs tasks on Cloudflare Workers, Vercel and Node. An in-engine operator delivers them by signed POST or by an invocation websocket that also carries durable sleeps, waits and child runs. Around it, the engine shipped three patches in a day: DAG replays no longer take an advisory lock, worker shutdown now waits for durable tasks, and status queries use partition pruning. The API now declares 429 with Retry-After on every authenticated call.
Firecracker vs Hatchet: editorial side-by-side
Firecracker
5.0INFRA · APIS
Firecracker adds PCI device hotplugging and virtio reset — microVM lifecycle management takes a meaningful step.
◆ Current state
Firecracker is Amazon's open-source microVM hypervisor, used as the isolation layer for Lambda and Fargate. Recent releases have been focused on expanding the microVM lifecycle model: v1.16.0 added developer preview PCI virtio device hotplug (block, pmem, net), v1.17.0 adds virtio device reset support and richer metrics emission (instance ID and operator-defined properties). The release cadence has accelerated — multiple patch releases within the same minor version cycle.
◆ Where it's heading
The hotplugging work in v1.16.0 is the most architecturally significant change in this window: being able to attach and detach storage and network devices from a running microVM without restarting it opens up dynamic workload scenarios that previously required a full cold start. The v1.17.0 metrics additions (instance ID emission, operator-defined key-value pairs) suggest growing operational observability requirements from fleet operators running Firecracker at scale.
◆ Prediction
The PCI hotplug is still developer preview — GA is the likely near-term milestone. Automatic guest notification for hotplug events (currently requiring manual PCI bus rescan) is the obvious follow-on feature. The metrics expansion suggests more structured telemetry is coming to support fleet-level observability tooling.
Hatchet
6.3INFRA · APIS
Hatchet takes durable tasks serverless, with handlers for Cloudflare Workers, Vercel and Node.
◆ Current state
Hatchet's new @hatchet-dev/serverless 0.1.0 runs tasks on Cloudflare Workers, Vercel and Node. An in-engine operator delivers them by signed POST or by an invocation websocket that also carries durable sleeps, waits and child runs. Around it, the engine shipped three patches in a day: DAG replays no longer take an advisory lock, worker shutdown now waits for durable tasks, and status queries use partition pruning. The API now declares 429 with Retry-After on every authenticated call.
◆ Where it's heading
Until now, running Hatchet meant running long-lived workers. The serverless package removes that requirement, so durable execution can run where JavaScript teams already deploy. The engine work points the same way: rate limits declared in the spec, safer worker acks, cheaper status queries. Patch cadence is still very high, often several engine tags a day, and much of it fixes durable-task edge cases.
◆ Prediction
Expect quick 0.1.x serverless releases as early users hit edge cases on each platform, and possibly matching Python handlers. More engine patches on durable-task shutdown and replay are likely.
Alternatives to Firecracker and Hatchet
Other Infra & APIs products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either Firecracker or Hatchet.
GitHub
At Universe, GitHub folds Copilot into Enterprise seats and lets Copilot Fusion pick the model.
incident.io
incident.io's agent now runs your team's own tools, with a human approval before any change.
Apache Airflow
Airflow 3.4 reaches its first release candidate, a week after the 10-20 provider wave.
Redocly
Redocly's reunite.agent gets per-duty cron schedules, rules and source repos.
Jackett
Jackett ships a daily build to keep hundreds of torrent indexers working as sites move and close.
See all Firecracker alternatives → · See all Hatchet alternatives →
Recent activity from Firecracker and Hatchet
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 20h agoHatchetHatchet v0.115.0: contributor list update, no product notes
- 22h agoHatchetHatchet v0.114.15 fixes migration deadlocks
- 23h agoHatchetHatchet v0.114.14 builds its own continuous aggregates
- 1d agoHatchetHatchet v0.114.13 quiets noisy DAG operator errors
- 1d agoHatchetPython SDK 1.43.2 parses 429 rate-limit errors
- 1d agoHatchetHatchet v0.114.12 adds a Concurrency dashboard page
- 1mo agoFirecrackerFirecracker v1.17.0: virtio device reset, richer metrics, 20% memory reduction
- 1mo agoFirecrackerFirecracker v1.16.2
- 3mo agoFirecrackerFirecracker v1.16.1
- 4mo agoFirecrackerFirecracker v1.16.0 ⚡
- 6mo agoFirecrackerFirecracker v1.14.4
- 6mo agoFirecrackerFirecracker v1.15.1
Frequently asked questions
What is the difference between Firecracker and Hatchet?
Both compete on the same themes — serverless — within Infra & APIs. Hatchet is currently shipping more aggressively (velocity 6.3 vs 5.0), with 0 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is Firecracker better than Hatchet?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Hatchet is currently shipping more aggressively (velocity 6.3 vs 5.0), with 0 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.
What are the best alternatives to Firecracker?
Top Firecracker alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Firecracker alternatives" section above for the current picks, or visit /alternatives/firecracker for the full list with editorial commentary on each.
What are the best alternatives to Hatchet?
Top Hatchet alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Hatchet alternatives" section above for the current picks, or visit /alternatives/hatchet for the full list with editorial commentary on each.