News for hackers. Stuff that matters.

defied

Re:Running Windows desktop tests from Linux with disposable VMs on Wednesday October 14, 2026 @12:16PM (#50090082)
We’ve been providing a similar approach with disposable VMs and emulators/simulators since 2014 at TestingBot. We run our own single-use QEMU VMs with Windows and Linux.
I’ve been using headroom to save on token usage and it’s pretty effective.
Re:The Safari MCP server for web developers on Friday July 03, 2026 @10:12AM (#48775313)
There has been the (Apple provided) safaridriver for a couple of years. It speaks WebDriver W3C and can be used to interact with a Safari instance.
Curious how they frame testing on real devices: “Real devices on demand: spin up iOS simulators and Android emulators”. So those are not real/physical devices?

Physical devices for AI agents is something we at TestingBot do provide: https://testingbot.com/support/ai/mcp

Same name as the test automation framework https://nightwatchjs.org/
Looks good, excited to try this together with the CDP feature. If it works well we can add it to our (TestingBot) integration/documentation.
Re:Critical CSS on Wednesday May 07, 2025 @09:07AM (#43915131)
We created this as a free tool a while back on TestingBot: https://testingbot.com/free-online-tools/critical-css-genera....

It uses a remote browser to start a Puppeteer session and runs JavaScript code to extract the critical CSS needed for above-the-fold content. We chose Puppeteer because it’s fast to instrument the browser and works well even on JavaScript-heavy sites.

Re:macOS in QEMU (ARM edition) [pdf] on Thursday July 27, 2023 @07:47AM (#36892081)
You can't use AppleID or iCloud because Apple's virtualization.framework does not support this (yet) https://developer.apple.com/forums/thread/707459

If you run macOS without the virtualization.framework, which is only possible on non-ARM mac's, then it will work.

We use it at https://testingbot.com to provide a realtime video stream of remote desktops and mobile device screens. Mostly with Pion (Go)
Re:Playwright: Automate Chromium, WebKit and Firefox on Thursday January 27, 2022 @02:35PM (#30105188)
I’m working on a project that provides remote browsers, running on VMs/containers, capable of running Playwright tests (and Puppeteer scripts): https://headlesstesting.com/

We’ve seen a consistent growth of interest in people wanting to use Playwright for browser automation (and testing).

For testing purposes, you can achieve similar results with Selenium IDE. You can export tests and upload these to (our website) https://testingbot.com - supports screenshots and scheduled runs.
Re:FFmpeg to WebRTC on Wednesday September 22, 2021 @10:36AM (#28616765)
Would using gstreamer instead of ffmpeg offer better or worse performance? (Less CPU usage on the sender side?) If anyone has experience with this setup, I’d love to know.
Chrome DevTools has an experimental feature since Chrome 89 which allows you to record Puppeteer scripts as well: https://developer.chrome.com/blog/new-in-devtools-89/#experi...
not yet - though we would like to add support for Detox in the future.
At https://testingbot.com we use this to install apps, take screenshots and manage devices for our users running tests against our physical iOS devices.
Re:QEMU 6.0 on Saturday May 01, 2021 @10:27AM (#27006572)
If anyone knows how to improve the graphics performance on Windows, please share. Compared with other hypervisors like Virtualbox or ESXI, there’s no graphics driver for Windows VMs with QEMU.
If you're using ffmpeg with rtp, you can use Pion to make it a WebRTC stream: https://github.com/pion/webrtc/tree/master/examples/rtp-to-w...
Re:Uhubctl – control USB power per-port on smart USB hubs on Sunday December 13, 2020 @08:58AM (#25406573)
If you're looking for smart USB Hubs, these are pretty good https://www.cambrionix.com/

We're using the "PowerPad" hubs for mobile device hosting. Each of the ports on the USB hub will detect the device and deliver its fastest possible charge.

Older »