Flux records API executions so you can replay failures locally, fix them, and resume execution safely. Instead of guessing from logs, you get the exact request, inputs, and behavior. Same request. Same IO. Same outcome.
Hey everyone 👋
I built Flux because debugging production bugs always felt like guesswork.
You look at logs, try to reproduce locally, add more logs, redeploy… and repeat.
Flux changes that.
It records every request (including external calls), so you can replay the exact failure locally.
Fix the bug → replay safely → then resume the same execution with real IO.
No mocks. No staging. No duplicate side effects.
I’m especially curious:
Would you trust something like this in your debugging workflow?
Happy to answer anything — especially how replay/resume works under the hood.
About Flux on Product Hunt
“Fix production bugs by replaying them locally”
Flux launched on Product Hunt on March 24th, 2026 and earned 109 upvotes and 18 comments, placing #14 on the daily leaderboard. Flux records API executions so you can replay failures locally, fix them, and resume execution safely. Instead of guessing from logs, you get the exact request, inputs, and behavior. Same request. Same IO. Same outcome.
On the analytics side, Flux competes within API, Open Source, Developer Tools and GitHub — topics that collectively have 718.5k followers on Product Hunt. The dashboard above tracks how Flux performed against the three products that launched closest to it on the same day.
Who hunted Flux?
Flux was hunted by Shashi Sharma. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Flux including community comment highlights and product details, visit the product overview.
Shashi Sharma