Retiring the Greenhouse

We have had a greenhouse in our backyard since the summer of 2015 (almost a decade ago). The greenhouse lasted much longer than we thought, given that it is just a thin aluminum structure with transparent plastic wall and roof sidings.

Greenhouse just before teardown

We are planning a sunroom extension and had to remove the greenhouse. This past Saturday, October 19, was the day marked for disassembly. A friend of mine agreed to disassemble the greenhouse and will later attempt to erect and reuse it on his property.

No more greenhouse!

New Found Love for LaTeX

In a previous post called, Scaled Solar System, I used \LaTeX for math equations. Recently I needed the ability to create a few documents that are mostly works in progress, and I wanted the ability to track the progress of these documents using git.

Traditional word processing tools like Google Docs or Microsoft Word are insufficient because tracking changes with Microsoft Word is simply too difficult to deal with.

Both my wife and I are about to travel to China in November and we had several disparate itineraries from various airlines, tour operators, hotels, and such. In the past, I usually used Microsoft Excel to create a combined itinerary. However, last year I tried to keep the combined itinerary in the iOS Notes App. Both solutions were less than ideal. Excel proved too difficult to edit on the go because I either had to use the mobile Excel app or open up my laptop. Once changes are made it would be difficult to track the changes that I made.

With the iOS Notes App, editing the cells within a table is okay for simple stuff, but for a complicated itinerary, the formatting capabilities simply did not exist. The tracking of changes was also an issue.

This time around, I am going to use \LaTeX. I have not used \LaTeX since I wrote my fourth-year thesis back at University of Toronto, that would be 33 years ago!

It took me some time to set up my Neovim environment for \LaTeX editing and previewing. The MacTeX package is an excellent all-in-one package for my Mac. After about a couple days, I was able to create a master itinerary with all the attached source itineraries, all delivered in a single PDF document. I am also able to create hyperlinks within the PDF so that I can jump to the source itinerary or booking information from the master itinerary entry.

The resulting PDF master itinerary has been very satisfactory. It was fulfilling to once again work with \LaTeX!

Bedroom Audio Setup

After watching the YouTube video below:

YouTube video that I watched
Playlist

I felt compelled to listen to my Bedroom audio system which I have not done for quite a while. I was pleasantly surprised by the musicality of the playlist that I quickly mustered for the night. I created the playlist on my old Mac mini 2018 using Apple Music configured for lossless music and USB output. On the other end of the USB is a Topping D90 DAC. My Q-Acoustic 3020i bookshelf speakers are powered by the S.M.S.L. DA-9 stereo amplifier.

With the acquisition of the S.M.SL. DA-9 stereo amplifier from my Winnipeg trip last year, and a freed, old Mac mini. I am able to swap out the old Raspberry Pi running Volumio as my streamer, and use the Mac mini instead. This way not only can I take advantage of Apple Music Loseless, but I can also install mpd to play my FLAC library. I still use the Rigelian App on both my Mac and iOS devices to control music from my mpd.

However to get the Mac mini working with my Topping D90 external DAC, I had to configure mpd appropriately. Below is a snippet of the mod configuration for audio_output. The configuration file is stored in ~/.mpd/mpd.conf.

audio_output {
          type            "osx"
          name            "D90 "
          device          "D90 " # optional
          mixer_type      "disabled"
          dop              "yes"
}

The following command can be used to obtain the detail of the USB audio devices that my Mac is aware of:

system_profiler SPAudioDataType

Note the extra trailing space of the D90 name.

Below are the pictures of the equipment and software of my stack.

My External DAC Topping D90
My Stereo Amplifier S.M.S.L DA-9
Q-Acoustics 3020i Bookshelf Speakers
I use the Rigelian App to control my music on mpd
All together now!