diff --git a/.profile b/.profile
new file mode 100755
index 0000000..b2164c6
--- /dev/null
+++ b/.profile
@@ -0,0 +1,37 @@
+PATH="$HOME/.local/bin:$HOME/.cargo/bin:$HOME/.ghcup/bin:$HOME/.cabal/bin:$PATH"
+
+if [ -x /opt/homebrew/bin/brew ]
+then
+	eval "$(/opt/homebrew/bin/brew shellenv)"
+
+	PATH="$HOMEBREW_PREFIX/opt/bison/bin:/usr/local/bin:$PATH"
+	for tool in libtool coreutils grep gnu-sed findutils make
+	do
+		PATH="$HOMEBREW_PREFIX/opt/$tool/libexec/gnubin:$PATH"
+	done
+else
+	PATH="$HOME/Projects/lsp/flutter/bin:$PATH"
+	export SSH_AUTH_SOCK=/run/user/1000/keyring/ssh
+fi
+
+if [ -d "$HOME/Android/Sdk" ]
+then
+	export ANDROID_HOME="$HOME/Android/Sdk"
+elif [ -d "$HOME/Library/Android/sdk" ]
+then
+	export ANDROID_HOME="$HOME/Library/Android/sdk"
+fi
+
+if [ -n "$ANDROID_HOME" ]
+then
+	# platform-tools may override system sqlite3.
+	PATH="$PATH:$ANDROID_HOME/platform-tools"
+fi
+
+export PATH
+
+export GPG_TTY=$(tty)
+export LESS="-R"
+export EDITOR="nvim"
+
+# vim: set ft=sh:
diff --git a/.yash_profile b/.yash_profile
new file mode 120000
index 0000000..aa7da3a
--- /dev/null
+++ b/.yash_profile
@@ -0,0 +1 @@
+.profile
\ No newline at end of file
diff --git a/.yashrc b/.yashrc
new file mode 100755
index 0000000..45a470e
--- /dev/null
+++ b/.yashrc
@@ -0,0 +1,23 @@
+# Firstly, load the common customization script.
+. --autoload --no-alias initialization/common
+
+# Undo some standard configuration.
+export YASH_PS1='${LOGNAME}@${HOSTNAME%%.*}[$(date +%k:%M)]: '\
+'${${${PWD:/~/\~}##*/}:-$PWD} ${{SHLVL-0}:/1}\$ '
+export YASH_PS1R='${{?:/0/}:+\\fr.$?\\fd. }'
+unset -f sh
+
+# Clear the screen with Ctrl-L.
+bindkey --emacs '\^L' clear-and-redraw-all
+bindkey --vi-insert '\^L' clear-and-redraw-all
+bindkey --vi-command '\^L' clear-and-redraw-all
+
+# Define shortcuts.
+alias rdpwin='xfreerdp /f /sound /v:192.168.0.4 /u:belka@caraus.de'
+
+# Programming environment.
+command -v rbenv >/dev/null 2>&1 && eval "$(rbenv init -)"
+
+command -v fastfetch >/dev/null 2>&1 && fastfetch
+
+# vim: set ft=sh:
diff --git a/.zshenv b/.zshenv
deleted file mode 100644
index 8fa5a6e..0000000
--- a/.zshenv
+++ /dev/null
@@ -1,34 +0,0 @@
-typeset -U path
-
-path+=(
-	$HOME/.local/bin
-	$HOME/.cargo/bin
-	$HOME/.ghcup/bin
-	$HOME/.cabal/bin
-)
-
-if [ -n "$HOMEBREW_PREFIX" ]
-then
-	path=(
-		$HOMEBREW_PREFIX/bin
-		$HOMEBREW_PREFIX/opt/node@20/bin
-		$HOMEBREW_PREFIX/opt/php@8.1/bin
-		$HOMEBREW_PREFIX/opt/libtool/libexec/gnubin
-		$HOMEBREW_PREFIX/opt/coreutils/libexec/gnubin
-		$HOMEBREW_PREFIX/opt/grep/libexec/gnubin
-		$HOMEBREW_PREFIX/opt/gnu-sed/libexec/gnubin
-		$HOMEBREW_PREFIX/opt/findutils/libexec/gnubin
-		$HOMEBREW_PREFIX/opt/make/libexec/gnubin
-		$HOMEBREW_PREFIX/opt/bison/bin
-		$path
-	)
-else
-	export SSH_AUTH_SOCK=/run/user/1000/keyring/ssh
-fi
-
-export PATH
-
-export GPG_TTY=$(tty)
-export LESS="-R"
-export EDITOR="nvim"
-export JDTLS_HOME=$HOME/Projects/lsp/eclipse.jdt.ls/org.eclipse.jdt.ls.product/target/repository
diff --git a/.zshrc b/.zshrc
deleted file mode 100644
index e579df1..0000000
--- a/.zshrc
+++ /dev/null
@@ -1,65 +0,0 @@
-# Auto completion.
-autoload -Uz compinit
-zstyle ':completion:*' menu select
-zstyle ':completion:*' completer _expand _complete _ignored
-zstyle :compinstall filename '$HOME/.zshrc'
-zmodload zsh/complist
-compinit
-_comp_options+=(globdots)
-
-# Lines configured by zsh-newuser-install
-HISTFILE=~/.histfile
-HISTSIZE=1000
-SAVEHIST=1000
-setopt autocd nomatch
-unsetopt beep extendedglob notify
-# End of lines configured by zsh-newuser-install
-
-# Prompt left and right.
-PROMPT='%n@%m[%T]: %B%F{240}%1~%f%b %# '
-RPROMPT='%(?.%F{green}√.%F{red}?%?)%f'
-
-bindkey -e # Emacs mode.
-# Key bindings.
-test -n "$terminfo[kdch1]" && bindkey "$terminfo[kdch1]" delete-char
-test -n "$terminfo[kpp]" && bindkey "$terminfo[kpp]" beginning-of-buffer-or-history
-test -n "$terminfo[knp]" && bindkey "$terminfo[knp]" end-of-buffer-or-history
-
-test -n "$terminfo[khome]" && bindkey -M emacs "$terminfo[khome]" beginning-of-line
-test -n "$terminfo[kend]" && bindkey -M emacs "$terminfo[kend]" end-of-line
-
-[[ "$terminfo[khome]" == "O"* ]] && bindkey -M emacs "${terminfo[khome]/O/[}" beginning-of-line
-[[ "$terminfo[kend]" == "O"* ]] && bindkey -M emacs "${terminfo[kend]/O/[}" end-of-line
-
-test -n "$terminfo[kcbt]" && bindkey -M menuselect "$terminfo[kcbt]" reverse-menu-complete
-
-# Load additional key bindings.
-eval "$(fzf --zsh 2> /dev/null)"
-
-# Aliases.
-alias ls='ls --color' la='ls -a' ll='ls -l' lla='ll -a'
-alias mc='mc -xc'
-alias grep='grep --color=auto'
-
-cp() if [ -t 0 ]; then command cp -i "$@"; else command cp "$@"; fi
-mv() if [ -t 0 ]; then command mv -i "$@"; else command mv "$@"; fi
-rm() if [ -t 0 ]; then command rm -i "$@"; else command rm "$@"; fi
-
-# Keep working directory in a new instance for vte terminal emulators
-test -f /etc/profile.d/vte.sh && source /etc/profile.d/vte.sh
-
-# Completion for kitty
-kitty + complete setup zsh | source /dev/stdin
-
-. ~/.zshenv # Restore $PATH to my custom one
-
-# Plugins
-if [ -f /usr/share/zsh/plugins/zsh-syntax-highlighting/zsh-syntax-highlighting.zsh ]
-then
-	source /usr/share/zsh/plugins/zsh-syntax-highlighting/zsh-syntax-highlighting.zsh
-elif [ -n "$HOMEBREW_PREFIX" -a -f $HOMEBREW_PREFIX/share/zsh-syntax-highlighting/zsh-syntax-highlighting.zsh ]
-then
-	source $HOMEBREW_PREFIX/share/zsh-syntax-highlighting/zsh-syntax-highlighting.zsh
-fi
-
-whence -p fastfetch > /dev/null && fastfetch