Alsaplayer is a simple audio player with playlist support. Most interesting to me, though, is the inbuilt ability to change the playback speed/pitch to anything between 1% (!) to 400% of the original speed with a slider, which allows me to enjoy my favourite music at different musical pitches. It can even play tracks backwards, including at different pitches (note the ‘-100%’ playback speed in the screenshot). Alsaplayer is available in the AUR and can be installed using yay -S alsaplayer.
qmapshack
Use QMapShack to plan your next outdoor trip or to visualize and archive all the GPS recordings of your past exciting adventures. QMapShack is the next generation of the famous QLandkarte GT application.
Nheko is a Matrix client written in Qt, that supports encrypted rooms!
When I found it I was super happy to be able to get rid of another Electron app (Element).
Works great for me; Builtin image/video viewer is a little wonky but you can chose to open media in external apps.
I really love QMMP, not too much features, it just plays music.
Not a lesser known script but a lesser known config: ~/.config/nano/nanorc the nano config file. This allows enabling syntax coloring, line numbers, enhanced mouse functionality (place the cursor with the mouse, instead of navigating with arrows), interface elements colors and more. Ever since I’ve discovered this, nano has become a much more pleasant experience.
These are the options I have enabled in my config:
set linenumbers
set mouse
set smarthome
#colors
set titlecolor bold,white,blue
set promptcolor lightwhite,grey
set statuscolor bold,white,green
set errorcolor bold,white,red
set spotlightcolor black,lightyellow
set selectedcolor lightwhite,magenta
set stripecolor ,yellow
set scrollercolor cyan
set numbercolor black,white
set keycolor cyan
set functioncolor green
include "/usr/share/nano/*.nanorc"
The last line enables syntax coloring.
If the config file doesn’t exist, it needs to be created (best to just copy the default config over from /etc: $ cp /etc/nanorc ~/.config/nano/nanorc and edit that).
More details about this can be found here: https://wiki.archlinux.org/title/nano#Configuration
You left a little bit of functionality off there:
bind F1 help main
bind F2 curpos main
bind ^c copy main
bind ^x cut main
bind ^v paste main
bind ^z undo main
bind ^y redo main
bind ^f whereis main
bind F3 findnext main
bind ^h replace main
bind ^s writeout main
bind ^q exit main
Reset some of the ‘controlling’ keypresses to more familiar defaults… 
Just add those to the .nanorc if you prefer them…
Great addition.
I want to add that ~/.nanorc and ~/.config/nano/nanorc can be used interchangeably, with the first having precedence over the latter. Still I prefer to remove clutter from ~/ as much as possible.
Or just use micro 
I would like to mention LinSSID, really useful to see which WIFI channels are less populated in your area:
Someone recently recommended this app to me
asciicema
It can be used to record and share your terminal sessions.
You can copy text from the shared recordings.
https://asciinema.org/
Here is a demo:
I feel this app fits 
tagline of being terminal centric
But what can you do with the recording? Just upload it to their website?
I find screen recording with ffmpeg or OBS to be much more useful, even though the recording is of a much larger size.
You can embed it in websites/blogs etc.
Maybe helpful to show people what happens when they type the command. Like tutorials and such. And the readers can just copy the text from the cast
From what i can see, you can copy paste things in the output window. I think that’s a great feature.
This was great find! I’ve been looking for something like this to test my new drives.
I discovered Calibre, which is a programme for reading books. It depends on qtwebengine so it can also show you word definitions straight from webpages.
I don’t know if it’s lesser known though, but I stumbled upon it by chance (prior to this I was reading stuff on Zathura).
As far as I know it is the most popular ebook management software. Almost everyone with an ebook reader and a vast collection of ebooks uses it. I have been using it for almost 10 years.
Kitty and Calibre are developed by the same person.
My apologies then. However I guess it’s not that popular outside of such circles (I’m not sure). I was looking for a way to convert epub files and it popped up. Also thanks for mentioning kitty, for some reason I thought it was discontinued, which is not the case.
Another tasty update…
Tree with colour… not that I ever use Tree to be honest.
install tre
Well, now you can be not using it, but… in colour! 
I’ve just found something exciting!
In my opinion looks much better than using VPN crap to conceal your identity.
Towards making Bittorrent anonymous and impossible to shut down.
We use our own dedicated Tor-like network for anonymous torrent downloading. We implemented and enhanced the Tor protocol specifications. Tribler includes our own Tor-like onion routing network with hidden services based seeding and end-to-end encryption.
Tribler aims to give anonymous access to content. We are trying to make privacy, strong cryptography, and authentication the Internet norm.
For the past 11 years we have been building a very robust Peer-to-Peer system. Today Tribler is robust: “the only way to take Tribler down is to take The Internet down” (but a single software bug could end everything).
I’m sure it will be very useful for people living in certain countries like Germany, which states are not fans of information freedom and will enforce some…stuff (sometimes it’s money penalties, sometimes blocking you from ISP) in case you’re using torrent protocol “inappropriately”.
Hey mr policeman, look what 
got in store for you
P.S. There is only one serious problem with it so far - constant python dependency hell, to the latest of how to build it see comments in aur… Other than that it’s 
Deserves to be in Arch repo someday.
Looks great! It may be very useful to make my perfectly legal daily download of 500+ Gb of GNU/Linux ISOs more anonymous.