Update cheatsheets

tldr/devenv

@@ -0,0 +1,33 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# devenv
+
+> Fast, Declarative, Reproducible and Composable Developer Environments using Nix.
+> More information: <https://devenv.sh>.
+
+- Initialise the environment:
+
+`devenv init`
+
+- Enter the Development Environment with relaxed hermeticity (state of being airtight):
+
+`devenv shell --impure`
+
+- Get detailed information about the current environment:
+
+`devenv info --verbose`
+
+- Start processes with `devenv`:
+
+`devenv up --config /{{file}}/{{path}}/`
+
+- Clean the environment variables and re-enter the shell in offline mode:
+
+`devenv --clean --offline`
+
+- Delete the previous shell generations:
+
+`devenv gc`

tldr/linux/pw-metadata

@@ -0,0 +1,38 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# pw-metadata
+
+> Monitor, set, and delete metadata on PipeWire objects.
+> See also: `pipewire`, `pw-mon`, `pw-cli`.
+> More information: <https://docs.pipewire.org/page_man_pw-metadata_1.html>.
+
+- Show metadata in `default` name:
+
+`pw-metadata`
+
+- Show metadata with ID 0 in `settings`:
+
+`pw-metadata {{-n|--name}} {{settings}} {{0}}`
+
+- List all available metadata objects:
+
+`pw-metadata {{-l|--list}}`
+
+- Keep running and log the changes to the metadata:
+
+`pw-metadata {{-m|--monitor}}`
+
+- Delete all metadata:
+
+`pw-metadata {{-d|--delete}}`
+
+- Set `log.level` to 1 in `settings`:
+
+`pw-metadata --name {{settings}} {{0}} {{log.level}} {{1}}`
+
+- Display help:
+
+`pw-metadata --help`

tldr/mpv

@@ -31,7 +31,7 @@ source: https://github.com/tldr-pages/tldr.git
 
 - Play a file at a specified speed (1 by default):
 
-`mpv --speed {{0.01..100}} {{path/to/file}}`
+`mpv --speed={{0.01..100}} {{path/to/file}}`
 
 - Play a file using a profile defined in the `mpv.conf` file:
 

tldr/typeinc

@@ -0,0 +1,26 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# typeinc
+
+> An `ncurses` based terminal typing speed test program, written in python.
+> Try out different difficulty levels and improve your typing speed.
+> More information: <https://github.com/AnirudhG07/Typeinc>.
+
+- Enter the typing test:
+
+`typeinc`
+
+- Display the top 10 [r]anklist for input difficulty level:
+
+`typeinc --ranklist {{difficulty_level}}`
+
+- Get random English [w]ords present in our wordlist:
+
+`typeinc --words {{word_count}}`
+
+- Calculate hypothetical Typeinc [s]core:
+
+`typeinc --score`

tldr/yt-dlp

@@ -18,7 +18,7 @@ source: https://github.com/tldr-pages/tldr.git
 
 `yt-dlp --list-formats "{{https://www.youtube.com/watch?v=oHg5SJYRHA0}}"`
 
-- Download a video with a defined format, in this case the best mp4 video available (default is "bv\*+ba/b"):
+- Download a video or playlist using the best MP4 video available (default is "bv\*+ba/b"):
 
 `yt-dlp --format "{{bv*[ext=mp4]+ba[ext=m4a]/b[ext=mp4]}}" "{{https://www.youtube.com/watch?v=oHg5SJYRHA0}}"`
 
@@ -30,14 +30,10 @@ source: https://github.com/tldr-pages/tldr.git
 
 `yt-dlp --extract-audio --audio-format {{mp3}} --audio-quality {{0}} "{{https://www.youtube.com/watch?v=oHg5SJYRHA0}}"`
 
-- Download all playlists of YouTube channel/user keeping each playlist in separate directory:
+- Download all playlists of a YouTube channel/user keeping each playlist in a separate directory:
 
 `yt-dlp -o "{{%(uploader)s/%(playlist)s/%(playlist_index)s - %(title)s.%(ext)s}}" "{{https://www.youtube.com/user/TheLinuxFoundation/playlists}}"`
 
-- Download Udemy course keeping each chapter in separate directory under MyVideos directory in your home:
+- Download a Udemy course keeping each chapter in a separate directory:
 
-`yt-dlp -u {{user}} -p {{password}} -P "{{~/MyVideos}}" -o "{{%(playlist)s/%(chapter_number)s - %(chapter)s/%(title)s.%(ext)s}}" "{{https://www.udemy.com/java-tutorial}}"`
-
-- Download entire series season keeping each series and each season in separate directory under C:/MyVideos:
-
-`yt-dlp -P "{{C:/MyVideos}}" -o "{{%(series)s/%(season_number)s - %(season)s/%(episode_number)s - %(episode)s.%(ext)s}}" "{{https://videomore.ru/kino_v_detalayah/5_sezon/367617}}"`
+`yt-dlp -u {{user}} -p {{password}} -P "{{path/to/directory}}" -o "{{%(playlist)s/%(chapter_number)s - %(chapter)s/%(title)s.%(ext)s}}" "{{https://www.udemy.com/java-tutorial}}"`