Denys Koval

TypeScript, React, Next.js, Node.js, PostgreSQL, Prisma, Tailwind CSS, Python for automation, Chrome extensions (MV3).

Manifest V3 internals: declarativeNetRequest limits, service-worker lifecycles and how far chrome.debugger can go.

Headwise – a ModHeader replacement for HTTP header rules and API response mocks – and Framekeep, a screen recorder with no watermark.

Questions about Headwise or Framekeep, bug reports, and talk about browser extensions, MV3 migration and dev tooling.