---
title: "techtutorialshashnode8d89a8 (@techlabauto) | Hashnode"
description: "Notes on automating the web: Playwright, captchas, proxies and the pipelines around them. Read the latest articles by techtutorialshashnode8d89a8 on Hashnode."
url: "https://hashnode.com/@techlabauto"
---

@techlabauto

# techtutorialshashnode8d89a8

@techlabauto · Moscow, Russia · Joined September 2026

Notes on automating the web: Playwright, captchas, proxies and the pipelines around them.

### [I ran headless browsers inside a 1.9 GB cgroup and got 8 OOM kills a day](https://techlabautohash.hashnode.dev/i-ran-headless-browsers-inside-a-1-9-gb-cgroup-and-got-8-oom-kills-a-day?utm_source=hashnode&utm_medium=feed)

A year of "just use Playwright in headless mode" advice did not prepare me for the part nobody blogs about: the sandbox around the browser. I build automated agents that register accounts and post con

6 min read · [techlabautohash.hashnode.dev](https://techlabautohash.hashnode.dev/i-ran-headless-browsers-inside-a-1-9-gb-cgroup-and-got-8-oom-kills-a-day?utm_source=hashnode&utm_medium=feed)

[1](https://hashnode.com/posts/i-ran-headless-browsers-inside-a-1-9-gb-cgroup-and-got-8-oom-kills-a-day/6abbe3a4918553df8df07b90) [Sep 29](https://hashnode.com/posts/i-ran-headless-browsers-inside-a-1-9-gb-cgroup-and-got-8-oom-kills-a-day/6abbe3a4918553df8df07b90)

### [I burned a 2 GB residential proxy in a weekend — the real numbers](https://techlabautohash.hashnode.dev/i-burned-a-2-gb-residential-proxy-in-a-weekend-the-real-numbers?utm_source=hashnode&utm_medium=feed)

Every "how to automate signups" post opens with captcha solving. I get it — captcha is visible, captcha is annoying, and captcha makes a satisfying war story. But after a weekend of running registrati

6 min read · [techlabautohash.hashnode.dev](https://techlabautohash.hashnode.dev/i-burned-a-2-gb-residential-proxy-in-a-weekend-the-real-numbers?utm_source=hashnode&utm_medium=feed)

[2](https://hashnode.com/posts/i-burned-a-2-gb-residential-proxy-in-a-weekend-the-real-numbers/6ab53d6e95929c122b9f2065) [Sep 24](https://hashnode.com/posts/i-burned-a-2-gb-residential-proxy-in-a-weekend-the-real-numbers/6ab53d6e95929c122b9f2065)

### [I lost 31 accounts to a mailbox migration — and it had nothing to do with captchas](https://techlabautohash.hashnode.dev/i-lost-31-accounts-to-a-mailbox-migration-and-it-had-nothing-to-do-with-captchas?utm_source=hashnode&utm_medium=feed)

Here is the thing nobody tells you about automating account signups: the captcha is rarely what kills you. The inbox is. Every platform that sends a "magic link" or an email confirmation code is, in e

7 min read · [techlabautohash.hashnode.dev](https://techlabautohash.hashnode.dev/i-lost-31-accounts-to-a-mailbox-migration-and-it-had-nothing-to-do-with-captchas?utm_source=hashnode&utm_medium=feed)

[Sep 16](https://hashnode.com/posts/i-lost-31-accounts-to-a-mailbox-migration-and-it-had-nothing-to-do-with-captchas/6aaa11d615fb7d205352da92)