Posts about photography, contract bridge, astrophotography, astronomy, Java development, internet systems.

Ruby gem problems around libv8, therubyracer, mac vs. linux, native extensions

I haven’t done a techie blog post for a while, and this “solved problem” keeps raising its head at work, so here goes.

Here’s the situation:

A ruby web app
Develop on Mac OS X
Deploy on Linux
Using bundler to control gem versions
Using therubyracer and libv8

You build your app on your Mac, install your bundle of gems using bundler, and […]

Perfect wallpaper from digital photos using Linux and Netpbm

The world is full of wallpaper managers for every operating system out there. I enjoy wallpapers taken from some of my digital photography, such as this trip to Yosemite last year.

On nice modern monitors, you can really enjoy the full resolution of your pictures. Jane and I just replaced our old Viewsonic CRT monitors with some […]