trevor elliott
Home Manager
I recently switched to managing my dotfiles with home-manager and nix, and have slowly gone from trying to use it minimally to having it control a substantial portion of my neovim configuration.
Dactyl Tight Build
After reading about the tightyl on r/ergomechkeyboards, I decided to take the plunge and build my own hand-wired keyboard. The total time to assemble it was not as substantial as I expected, but there were some long gaps during the work due to not having ordered some necessary parts.
Vim's `findfile` function
I’ve recently updated the tests for stack.yaml and cabal.project files in my
vim haskell plugin. The
haskell#StackYamlFileExists and haskell#CabalProjectFileExists functions now
take advantage of vim’s findfile function for searching up the directory tree,
rather than just require that either file exist in the current working
directory. This change makes a bit more sense given the way that both stack
and cabal new-build work, allowing the commands to be invoked from anywhere
underneath the directory that contains stack.yaml or cabal.project.
Debug Console on Xen
When debugging HaLVM domains, the writeDebugConsole
function from Hypervisor.Debug is invaluable. However, in order to see the
messages printed, you must enable the emergency console in
Xen. This isn’t too difficult, but it’s not terribly well
documented: there are many sources that describe parts of the process, but none
that describe the whole thing.
Private DHCP
Recently I was working on a project in which I was creating loads of tap devices, with HaNS instances connected to them. Initially, I was abusing the Galois network, stealing away precious addresses from our internal /24 allocation. This wasn’t the end of the world, as I was reusing addresses I was given, but it got me thinking: shouldn’t I be able to just allocate my own addresses?