segments: Yifei Zhan's blog

A while ago, CommBank started asking for MFA confirmation on its mobile app for every NetBank login on a browser.

I recently replaced the screen of a Google Pixel 3A XL, the new panel is made by tianma and worked well under Andoird, until it doesn’t.

I believe buying a Kindle in 2024 is a bad idea, even if you only intend to use it for reading DRM-free locally stored ebooks.

The easiest way to change/set PIN for FIDO2 token seems to be with Chromium/Chrome: Plug in the token Launch Chromium, navigate to chrome://settings/securityKeys, or click Settings -> Privacy and Security -> Security -> Manage security keys Click Create a…

I’ve been daily driving the PinePhone Pro with swmo for some times now, it’s not perfect but I still find it be one of the most enjoyable devices I’ve used.

The melting plastic and the smoke # The PinePhone keyboard contains a battery, which will be used to charge the PinePhone when the keyboard is attached.

I didn’t take as much notes on day 2 and 3, so I merged them into a single article.

sched_ext - Write your own Linux thread scheduler in BPF # BPF made creating new scheduler simpler with strong safety guarantee to not break the system, the side effects of bad scheduler are confined. run a binary to enable your scheduler, stop the binary…

Here you can find a list of links related to my topic which I find useful or just interesting.

As an OpenBSD package maintainer, I often need to watch for updates on packages I maintain.

git-annex(1) is a versatile and cross-platform tool build on top of git, it can sync, backup, archive files and provides many useful primitives for building customized workflow and storage system, for example, by combining git-annex with gcrypt, it’s poss…

Doing anything close to the kernel/bootloader on PinePhone almost always requires a serial cable, Pine64 store has premade serial cable available for 7$ USD, but making your own serial cable can be both cheaper and more flexible as a DIY cable can support…

Disclaimer # OpenBSD does not support PinePhone Pro yet and there are real risks involved in running it on your PinePhone Pro now, as such, I do not recommand anyone to do that.

Basic Setup # All the tools we need for running VM are already packaged on Mobian, to install them, run: sudo apt install virt-manager then add your user to the libvirt group: sudo adduser mobian libvirt Reboot and then run virt-host-validate, it should…

It’s been a bit more than a week since I start daily driving the PinePhone Pro with Mobian, some parts of my journey are documented here.

Setup Tow-boot # Mobian as of now requires Tow-boot bootloader to be installed first, u-boot is no longer supported.

RetroBSD: a port of 2.11BSD Unix intended for embedded systems with fixed memory mapping. https://github.com/RetroBSD/retrobsd/wiki This might be a good base to build on.

Taken from ~/.xsession Disable system beep # xset b off Scrolling by dragging with the middle button and trackpoint # xinput set-prop "/dev/wsmouse" "WS Pointer Wheel Emulation" 1 xinput set-prop "/dev/wsmouse" "WS Pointer Wheel Emulation Button" 2 xin…