Multizone | All our technotes
If we've published it, you can find it here.
Linux Kernel's Official AI Guidelines: What the Rules Actually Say
The Linux kernel project has formalized its stance on artificial intelligence in software development, adopting a policy framework that charts a deliberate middle course between outright prohibition and unregulated acceptance. Rather than banning AI tools or treating them as a free pass for unreviewed code, the new guidelines establish a system of human accountability at every stage of the contribution process.
- Details
Read more: Linux Formally Embraces AI Code Contributions With Human Accountability Rules
Roku Stick Models: Which One Is Right for You
Choosing the right Roku device comes down to understanding what each model offers and matching those features to your TV setup and viewing habits. Roku's lineup spans several price points, with the three most popular options being the Roku Express, the Roku Streaming Stick 4K, and the Roku Ultra.
Side-by-Side Model Comparison (UK)
| Model | Max Resolution | Remote Features | Approximate Price |
|---|---|---|---|
| Roku Streaming Stick (3840EU) | 1080p HD | Voice remote with TV controls | £30 |
| Roku Streaming Stick Plus 4K (3830EU) | 4K | Voice remote with TV controls | £40 |
How to Pick the Right Model
If you own an older 1080p television, the Roku Stick is a budget-friendly entry point that delivers reliable HD streaming without unnecessary extras. However, if your TV supports 4K resolution, stepping up to the Streaming Stick Plus 4K is well worth the modest price difference, as it unlocks sharper picture quality and HDR support.
Ultimately, the Streaming Stick 4K offers the best balance of performance and value for most households upgrading to a modern streaming experience.
Top Roku Apps and Channels Worth Installing
One of Roku's greatest strengths is its massive library of channels and apps, spanning everything from free ad-supported content to premium subscription services. Whether you're cutting the cord on cable or simply expanding your entertainment options, knowing which apps to install first can save you time and money.
Best Free Roku Channels
Roku offers an impressive lineup of completely free, ad-supported channels that rival paid services in terms of content variety. The three standouts are:
- The Roku Channel — Roku's own free streaming hub featuring movies, live TV, and on-demand content with no subscription required.
- Tubi — One of the largest free streaming libraries available, with thousands of movies and TV shows across virtually every genre.
- Pluto TV — Offers a unique live TV experience with hundreds of themed channels, all completely free.
Must-Have Paid Streaming Apps
For those willing to invest in subscriptions, several premium apps are essential additions to any Roku device. Netflix, Disney+, and HBO Max consistently rank among the most-installed apps on the platform, offering blockbuster films, original series, and exclusive content unavailable elsewhere.
Hidden and Lesser-Known Gems
Beyond the obvious choices, the Roku Channel Store contains hundreds of niche apps worth exploring. Channels dedicated to classic films, international programming, fitness content, and independent documentaries are often overlooked but provide exceptional value. Searching the store directly — rather than relying on featured suggestions — is the best way to uncover these hidden treasures.
Roku Hidden Features and Secret Settings
Your Roku device is packed with capabilities that most users never discover. Beyond the standard interface, a handful of hidden menus, secret settings, and advanced features can dramatically improve your streaming experience once you know where to look.
Accessing the Roku Secret Menu
Roku devices include a hidden diagnostic menu accessible through a specific button combination on your remote. From the home screen, press Home five times, Fast Forward, Play, Rewind, Play, Fast Forward in sequence. This unlocks a secret settings panel where you can view platform details, run network diagnostics, and adjust advanced display options that are not visible in the standard settings menu.
Private Listening and Bandwidth Saver
Two of Roku's most underused built-in features are Private Listening and Bandwidth Saver. Private Listening lets you route audio directly to headphones plugged into the Roku mobile app or a compatible remote, so you can watch without disturbing anyone nearby. Bandwidth Saver, found under Settings > Network, automatically pauses streaming after four hours of inactivity, helping you avoid unnecessary data consumption on metered connections.
Screen Mirroring
Roku also supports screen mirroring from Android devices and Windows computers. Enable it by handling to Settings > System > Screen Mirroring and selecting your preferred connection mode.
Using the Roku Mobile App as an Advanced Remote
The free Roku mobile app transforms your smartphone into a powerful control hub. Key advantages include:
- Voice search directly from your phone's microphone
- A full keyboard for faster text entry
- Private Listening through your phone's headphone jack or Bluetooth
- Channel management and remote control when your physical remote is lost
Exploring these hidden features ensures you are getting the maximum value from your Roku device well beyond basic streaming.
Roku Stick vs. Amazon Fire Stick: Head-to-Head Comparison
Choosing between the Roku Stick and the Amazon Fire Stick comes down to your priorities — whether that's simplicity, app selection, or overall value. Both devices deliver solid streaming performance, but they take noticeably different approaches to the experience.
Interface and Ease of Use
Roku's interface is widely praised for its clean, neutral design that doesn't push any particular streaming service over another. Every app gets equal real estate on the home screen, making navigation straightforward for users of all ages. The Amazon Fire Stick, by contrast, features an interface heavily integrated with Amazon's own environment. While visually polished, it frequently surfaces Prime Video content first, which can feel intrusive if you rely on other platforms.
App Library and Exclusives
Roku boasts one of the largest app libraries available on any streaming device, with access to thousands of channels including free ad-supported options through The Roku Channel. The Fire Stick holds an edge for Amazon Prime members, offering deeper Alexa integration and exclusive access to certain Amazon Originals content. Notably, Google and YouTube apps have historically faced availability issues on Fire Stick due to corporate disputes, whereas Roku maintains broad compatibility across major platforms.
Price and Performance
| Feature | Roku Streaming Stick HD | Amazon Fire Stick HD |
|---|---|---|
| Starting Price | £30 | £40 |
| Voice Assistant | Roku Voice | Alexa |
| App Neutrality | High | Low (Amazon-favored) |
| Best For | General streaming users | Amazon Prime members |
At comparable price points, Roku offers better overall value for most users thanks to its unbiased interface and broader app compatibility. The Fire Stick is a compelling choice primarily if you are already embedded in Amazon's environment.
- Details
What Your Roku Stick Can Actually Do (Beyond Basic Streaming)
Most people plug in a Roku stick, find Netflix, and stop there. But the device sitting behind your TV is capable of quite a bit more than queuing up the next episode of whatever everyone is watching. Understanding the full range of what a Roku stick offers can meaningfully change how you use your television every day.
TL;DR – Taking ten minutes to explore these settings ensures you are getting the sharpest picture, the best audio, and a more secure streaming environment from day one.
- Details
Read more: Roku Stick: Apps, Hidden Features, and Getting the Most From It
The Hidden Storage Hog Living Inside Your Mac
If you have been using Xcode for any meaningful stretch of time, there is a good chance your Mac is quietly running out of room — and you may have no idea why. Xcode simulators are one of the most persistent and underappreciated causes of ballooning disk usage on a developer's machine, accumulating gigabytes of data in the background without ever surfacing a single warning or prompt.
The problem compounds itself in two distinct ways. First, simulator runtimes themselves take up significant space — each iOS, watchOS, or other platform simulator you have ever downloaded leaves behind a substantial footprint. Second, Device Support files pile on top of that. These are files Xcode writes to ~/Library/Developer/Xcode/iOS DeviceSupport and equivalent directories for every device and OS version combination you connect or target. Neither category cleans itself up reliably, and neither is especially visible in day-to-day use.
To put a real number on it: I freed up 150GB of disk space after running cleanup commands on a machine with. 1TB SSD. That is not years of neglect — that is less than a year of ordinary Xcode use silently consuming the equivalent of thousands of photos or hours of video.
- Details
Read more: Xcode simulators can be very nearly impossible to delete
Why iOS Backups Are Silently Eating Your Mac's Storage
Every time you connect an iPhone or iPad to your Mac and sync it through iTunes (on older macOS versions) or Finder (on macOS Catalina and later), your Mac quietly creates a full local backup of that device. These backups are designed to be a safety net, but over the years, they have a habit of becoming a hidden storage crisis.
The problem compounds with each device upgrade. When you move from one iPhone to the next, a new backup is created for the new device, but the old backup is rarely deleted automatically. After two, three, or four device cycles, you can easily have a collection of backups sitting on your Mac that you have completely forgotten about. Each individual backup can run to tens of gigabytes depending on how much data, photos, and app content was on the device at the time it was created.
- Details
Read more: Disk full on a Mac? Check for old iOS backups hogging space
What Apple's New Terminal Warning System Actually Does
With macOS Tahoe, Apple introduced a proactive security layer directly inside the Terminal application — one designed to intercept potentially dangerous commands before they ever execute. The system works by analyzing clipboard content at the moment a user attempts to paste it into a Terminal window, flagging anything that exhibits characteristics associated with malicious or destructive behavior.
- Details
Read more: macOS Terminal Security: Apple's New Warning System Explained
What Is Assistive Access and How Does It Work?
Assistive Access is an Apple accessibility feature introduced in iOS 17, designed specifically to simplify the iPhone and iPad experience for people with cognitive disabilities, including those with intellectual disabilities, Down syndrome, or dementia. Rather than hiding or restricting features, Assistive Access rebuilds the entire interface from the ground up, presenting only the elements a user truly needs in a format that is far easier to understand and handle.
- Details
Read more: Assistive Access: A Simpler iPhone Interface for Everyone
