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levleontiev commented on Ask HN: What Are You Working On? (March 2026)    · Posted by u/david927
levleontiev · 4 days ago
Working on Fairvisor — a tool for API governance and usage control.

The problem: one buggy integration, scraper, or infinite retry loop can suddenly explode your API costs or overload infrastructure before anyone notices.

Fairvisor acts as a guardrail in front of your API:

per-tenant and per-route rate limits

request budgets and soft/hard caps

anomaly alerts for sudden spikes

The edge component is open source (OpenResty / Nginx + Lua) and the SaaS part provides policy management and audit.

Still early, validating whether teams would use something like this instead of building internal scripts.

https://github.com/fairvisor/edge

levleontiev commented on We can't have nice things because of AI scrapers   blog.metabrainz.org/2025/... · Posted by u/LorenDB
levleontiev · 2 months ago
I am terribly sorry for self-advertising, but:

I am just now busy building a solution: self-hosted sophisticated rate-limiting.

More complex than nginx, more private than cloudfare. Please joint the waitlist if you want to morally support me ;)

https://getfairvisor.com/

levleontiev commented on AI crawlers, fetchers are blowing up websites; Meta, OpenAI are worst offenders   theregister.com/2025/08/2... · Posted by u/rntn
levleontiev · 7 months ago
That's why I am building a Rate Limiter as a service. Seems that it has its niche.
levleontiev commented on XZ backdoor story – Initial analysis   securelist.com/xz-backdoo... · Posted by u/kryster
levleontiev · 2 years ago
Sorry if I trigger anyone's paranoia, but 1. who told you that it's not a state-backed attack? 2. and if 1 is true, who told it, it's not Russia staying behind it?

and if 2 is true, the KGB university alumni Kaspersky definitely is related to it.

levleontiev commented on You do need a technical co-founder [video]   ycombinator.com/blog/why-... · Posted by u/todsacerdoti
gnicholas · 2 years ago
This is an interesting idea — variable vesting based on milestones. It would be a great way to reduce risk, though of course there are issues that could arise that would make this complicated. For example, if the technical person vests based on hitting certain product-related goals, does he get penalized if part of the dev team gets hired by another company, which makes it harder for him to hit the milestones? Or for the non-technical cofounder, if the economy goes into a tailspin, and it's much harder to make sales than the cofounders anticipated, should he not vest, even if he's doing everything he can?

But overall, I think this is a really intriguing idea. Points could be assigned for what each founder is bringing to the table (concrete idea, market research, cash), and they would get some vested stock for that. Then the rest of the founder's shares could be put into a pool and vested to particular founders that hit their milestones. You wouldn't want to make it too adversarial, but it's possible the benefits of incentive alignment would overcome the downsides of the zero-sum game thinking that the system could engender.

levleontiev · 2 years ago
>does he get penalized if part of the dev team gets hired by another company, which makes it harder for him to hit the milestones?

Of course yes. The part of executive responsibility is to maintain the team and calculate the riscs .

levleontiev commented on SpaceX Starship Super Heavy Project at the Boca Chica Launch Site   faa.gov/space/stakeholder... · Posted by u/peter_d_sherman
levleontiev · 2 years ago
Is it only me who sees BDSM logo here?
levleontiev commented on Meduza co-founder's phone infected with Pegasus   meduza.io/en/feature/2023... · Posted by u/Klaster_1
levleontiev · 3 years ago
Also interesting that a new “bad guy” from the Caucasus might be the actual attacker.

u/levleontiev

KarmaCake day35July 11, 2015View Original