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wvengen / README.md
Last active August 1, 2022 07:08
Using trickle with Flatpak applications

Trickle is a command-line tool to throttle network bandwidth of other applications. You use it on the command-line to start the application. It uses LD_PRELOAD to override network-related calls. As a result, using it with containerized apps, like Flatpak, does not work out of the box.

To get trickle to function with a Flatpak application, the preloaded library needs to be available in the container. And it needs to be compatible with the software in the container (notably, a glibc version that is compatible).

First try

  1. Install trickle on your (host) system, on Debian/Ubuntu that would be apt install trickle.
  2. Make sure you have the flatpak application installed. I'm using com.slack.Slack as an example here.
  3. Run the flatpak application with trickle
@wvengen
wvengen / README.md
Last active September 17, 2021 12:23
Basic redux-api example
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wvengen / NOTES.md
Last active July 14, 2021 07:03
Semantic web of food notes
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wvengen / pdf-zotero-unlink.py
Created May 21, 2021 08:43
Alternative for Zotero's "Unlink citations" in Google Docs
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wvengen / NOTES.md
Last active March 13, 2021 17:20
Freedrum on Linux

Freedrum on Linux

The recently released Freedrum has no official Linux support. But, fortunately, it uses standard Bluetooth LE MIDI. It doesn't seem to work out of the box, yet (on Ubuntu 17.04, most probably Ubuntu 18.04 will support it directly).

Bluez 5.46

One really needs bluez 5.46 or higher. On Ubuntu, these are packaged in artful proposed (amd64). Unfortunately, MIDI support is not enabled in this build (Ubuntu bug #1713017).

So you'll need to download the sources, install dependencies plus libasound2-dev, build and install resulting debs. You may need to add --enable-midi to debian/rules. Like this:

@wvengen
wvengen / README.md
Last active November 9, 2020 13:18
Seasonality in foods, international data

Buying fruit and vegetables in-season makes a difference in sustainability. What information is there on this, also internationally? Eventually it would be nice to provide this in a common format, so that you can give your country, and find what food products are in-season.

Below are some seasonal calendars. Most are a calendar with what fruits, vegetables (and sometimes other foods) are in-season, per month or per season. This is often tied to local availability. If greenhouses are used to grow, the local option may not be the most sustainable one, only Milieu Centraal appears to talk about this.

@wvengen
wvengen / launchpad_x.ctlr
Created June 17, 2020 13:06
Luppp controller definition for the Novation Launchpad X
{
"name": "Novation Launchpad X",
"author": "wvengen",
"link": "https://novationmusic.com/en/launch/launchpad-x",
"inputBindings": [
{
"status": 176,
"data": 89,
"action": "grid:launch_scene",
"scene": 0
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wvengen / gather-fish-data-fishbase.rb
Last active March 3, 2020 12:27
Enriching ASFIS with Wikidata or FishBase
#!/usr/bin/env ruby
#
# We start with the list at:
# http://www.fao.org/fishery/collection/asfis
# Then we query FishBase (and SeaLifeBase) for the ID and NL name.
#
# Before running this script, make sure you have the ASFIS spreadsheet,
# and make sure you've created the CACHEDIR directory (which stores all
# requests, so you can run this again without having to wait for the requests).
#
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wvengen / README.md
Last active January 16, 2020 13:49
d3.chart.sankey (product demo)

d3.chart.sankey: Reusable D3 Sankey diagram using d3.Chart.

This diagram shows how the ingredients may contribute to the total sustainability of a chocolate bar through different issues.

@wvengen
wvengen / README.md
Last active December 13, 2019 12:13
Run OpenLabeler with system Java

OpenLabeler is a pretty nice image annotation package, but I had issues getting it to run. Plus I'd rather use the system-supplied Java environment, instead of a bundled one, and install it for a user (not in the system).

This happens on a Debian or Ubuntu system (with apt and deb tools available).

  1. Download deb package of latest release.
  2. Extract its contents: dpkg-deb -x ~/.local/openlabeler openlabeler-1.2.0.deb
  3. Make sure you have OpenJDK 11 installed plus apt install libopenjdk-11-jre libopenjfx-java
  4. Cleanup directory structure: cd ~/.local/openlabeler && mv opt/OpenLabeler/* . && rmdir opt/OpenLabeler opt