diff --git a/by-topic.md b/by-topic.md
index 928197a..e6d9764 100644
--- a/by-topic.md
+++ b/by-topic.md
@@ -241,6 +241,7 @@
 - [windows](#windows)
 - [wordpress](#wordpress)
 - [xml](#xml)
+- [zsh](#zsh)
 
 ## ai 
 
@@ -373,7 +374,7 @@
 - [bernaferrari/ChangeDetection](https://github.com/bernaferrari/ChangeDetection) - Change Detection - Automatically track websites changes on Android in background.
 - [tasks/tasks](https://github.com/tasks/tasks) - Bringing Astrid Tasks back from the dead
 - [TeamNewPipe/NewPipe](https://github.com/TeamNewPipe/NewPipe) - A libre lightweight streaming front-end for Android.
-- [crunchwrapsuprm/PdfViewer](https://github.com/crunchwrapsuprm/PdfViewer) - A simple Pdf document viewer 💼
+- [chxpdev/PdfViewer](https://github.com/chxpdev/PdfViewer) - A simple Pdf document viewer 💼
 - [owntracks/android](https://github.com/owntracks/android) - OwnTracks Android App
 - [flutter/flutter](https://github.com/flutter/flutter) - Flutter makes it easy and fast to build beautiful apps for mobile and beyond
 - [dakhnod/Meshenger](https://github.com/dakhnod/Meshenger) - open source, P2P messenger without centralized server that works in a local network.
@@ -3283,7 +3284,6 @@
 - [mkaz/code-syntax-block](https://github.com/mkaz/code-syntax-block) - A WordPress plugin which extends Gutenberg adding color syntax highlighting to the code block.
 - [bobthecow/mustache.php](https://github.com/bobthecow/mustache.php) - A Mustache implementation in PHP.
 - [nachtfunke/basic-pattern-repository](https://github.com/nachtfunke/basic-pattern-repository) - Simple patterns for <use>. Just SVG - for your delight!
-- [romkatv/powerlevel10k](https://github.com/romkatv/powerlevel10k) - A Zsh theme
 - [thoughtbot/dotfiles](https://github.com/thoughtbot/dotfiles) - A set of vim, zsh, git, and tmux configuration files.
 - [dwyl/english-words](https://github.com/dwyl/english-words) - :memo: A text file containing 479k English words for all your dictionary/word-based projects e.g: auto-completion / autosuggestion
 - [mpphp/mpphp](https://github.com/mpphp/mpphp) - Micro Procedural PHP Framework
@@ -5376,6 +5376,19 @@
 - [jacobwb/hashover-next](https://github.com/jacobwb/hashover-next) - This branch will be HashOver 2.0
 - [mledoze/countries](https://github.com/mledoze/countries) - World countries in JSON, CSV, XML and Yaml. Any help is welcome!
 
+## zsh 
+
+- [jeroenjanssens/data-science-at-the-command-line](https://github.com/jeroenjanssens/data-science-at-the-command-line) - Data Science at the Command Line
+- [atuinsh/atuin](https://github.com/atuinsh/atuin) - ✨ Magical shell history
+- [NotAShelf/nyx](https://github.com/NotAShelf/nyx) - My overengineered NixOS flake. Desktops, laptops, servers and everything else that can run an OS.
+- [romkatv/powerlevel10k](https://github.com/romkatv/powerlevel10k) - A Zsh theme
+- [webpro/awesome-dotfiles](https://github.com/webpro/awesome-dotfiles) - A curated list of dotfiles resources.
+- [wfxr/forgit](https://github.com/wfxr/forgit) - :zzz: A utility tool powered by fzf for using git interactively.
+- [junegunn/fzf](https://github.com/junegunn/fzf) - :cherry_blossom: A command-line fuzzy finder
+- [starship/starship](https://github.com/starship/starship) - ☄🌌️  The minimal, blazing-fast, and infinitely customizable prompt for any shell!
+- [dehydrated-io/dehydrated](https://github.com/dehydrated-io/dehydrated) - letsencrypt/acme client implemented as a shell-script – just add water
+- [xtaran/zshrc](https://github.com/xtaran/zshrc) - Axel's .zsh directory which is basically his .zshrc. Needs grml's zshrc via grml-etc-core as submodule.
+
 
 ## License