Argos is a free GNOME version of BitBar. Both lets you run any script to create an icon in the panel (or Mac OS X Menu Bar). You can see lots of plugins here: BitBar plugins.

This screenshot shows the hosts file, opened from the argos extension. The extension is shown as a notebook icon with the number of unknown entries.

It complains on forgotten entries in your /etc/hosts file. See Argos-hosts for more info.

With Ubuntu 19.10 it’s simple to get a workstation with boot and root on ZFS. But what’s missing from the install is encryption. This is how I did it.

I suggest you first have:

• basic zfs knowledge
• good linux knowledge
• no important data on the target system
• more than 4 GB RAM
• SSD or better

# How-to

• Install Ubuntu as normal, but choose “use ZFS”. It’s marked as experimental, but that’s because how Ubuntu uses it may change in later releases. The code it self is solid.
• After install is done, you’re left with a bpool and an rpool. I will only focus on encrypting /home/. I’ll use username john in this example.
• Your layout will look something like this:

$ zfs list -r rpool
NAME                                               USED  AVAIL     REFER  MOUNTPOINT
rpool                                              165G   293G       96K  /
rpool/ROOT                                        18,8G   293G       96K  none
rpool/ROOT/ubuntu_oyzpo3                          18,8G   293G     3,92G  /
rpool/ROOT/ubuntu_oyzpo3/usr                      1,06M   293G       96K  /usr
rpool/ROOT/ubuntu_oyzpo3/usr/local                 992K   293G      144K  /usr/local
rpool/ROOT/ubuntu_oyzpo3/var                      13,4G   293G       96K  /var
rpool/ROOT/ubuntu_oyzpo3/var/games                 320K   293G       96K  /var/games
rpool/ROOT/ubuntu_oyzpo3/var/lib                  4,36G   293G     3,72G  /var/lib
rpool/ROOT/ubuntu_oyzpo3/var/lib/AccountServices   320K   293G       96K  /var/lib/AccountServices
rpool/ROOT/ubuntu_oyzpo3/var/lib/NetworkManager   3,67M   293G      208K  /var/lib/NetworkManager
rpool/ROOT/ubuntu_oyzpo3/var/lib/apt              87,0M   293G     74,9M  /var/lib/apt
rpool/ROOT/ubuntu_oyzpo3/var/lib/dpkg             87,4M   293G     41,2M  /var/lib/dpkg
rpool/ROOT/ubuntu_oyzpo3/var/log                   574M   293G      170M  /var/log
rpool/ROOT/ubuntu_oyzpo3/var/mail                 2,25M   293G      104K  /var/mail
rpool/ROOT/ubuntu_oyzpo3/var/snap                 8,46G   293G     8,46G  /var/snap
rpool/ROOT/ubuntu_oyzpo3/var/spool                10,4M   293G     3,51M  /var/spool
rpool/ROOT/ubuntu_oyzpo3/var/www                   320K   293G       96K  /var/www
rpool/USERDATA                                     141G   293G       96K  /
rpool/USERDATA/john_75qybu                         140G   293G      126G  /home/john
rpool/USERDATA/root_75qybu                        1,07G   293G     1,07G  /root

We want to replace rpool/USERDATA/john_75qybu with a new, encrypted file system.

# Overview

When I did this project in 2012 babycams cost from NOK 2000 and up, so I decided to see if I could build one using a Raspberry Pi, an IR light and a very cheap webcam.

This will of course only be a level 0 night vision (active).

# Parts

• IR LEDs with a 12V PSU.
• Raspberry Pi with a 5V PSU.
• Webcam. I don’t have a link to it, but pretty much any webcam will do.

# Overview

This is about improving photOS, mentioned in http://0p.no/2014/02/14/photos1.html.

When building this, price wasn’t a factor. If you want something cheap, you can still use this software with an old laptop or other recycled hardware.

The display from Chalkboard Electronics is beautiful. Good resolution (not extreme resolution, though), good contrast, nice colors. And it supplies power for the RPi. Unfortunately it’s hard to attach stuff to it. There are nothing but smooth surfaces.