more shell crimes while not understanding that *env only triggers once there is at least one install done

etc/profile.d/99-brew-whateverenv.sh

@@ -0,0 +1,66 @@
+# This file is a snippet from my {bash,zsh}rc handling both Linuxbrew and
+# different programming language version managers to ensure that when using
+# the former, it will hopefully work for all users.
+#
+# Dear future me, if you start changing things heavily in one place while not
+# updating the others, consider the traditional resolv.conf chattr +i
+# approach.
+
+# https://github.com/go-nv/goenv
+if [ -f /home/linuxbrew/.linuxbrew/opt/goenv/bin/goenv ]; then
+	eval "$(/home/linuxbrew/.linuxbrew/opt/goenv/bin/goenv init -)"
+	PATH=/home/linuxbrew/.linuxbrew/opt/goenv/bin/shims:$PATH
+elif [ -f ~/.goenv/bin/goenv ]; then
+	eval "$(~/.goenv/bin/goenv init -)"
+fi
+
+# https://github.com/nvm-sh/nvm
+if [ -d /home/linuxbrew/.linuxbrew/opt/nvm ]; then
+	mkdir -p /home/linuxbrew/.nvm
+	export NVM_DIR=/home/linuxbrew/.nvm
+	. /home/linuxbrew/.linuxbrew/opt/nvm/nvm.sh
+elif [ -d ~/.nvm ]; then
+	. ~/.nvm/nvm.sh
+	. ~/.nvm/bash_completion
+fi
+
+# https://github.com/rbenv/rbenv
+if [ -f /home/linuxbrew/.linuxbrew/opt/rbenv/bin/rbenv ]; then
+	eval "$(/home/linuxbrew/.linuxbrew/opt/rbenv/bin/rbenv init -)"
+	PATH=/home/linuxbrew/.linuxbrew/opt/rbenv/bin/shims:$PATH
+elif [ -f ~/.rbenv/bin/rbenv ]; then
+	eval "$(~/.rbenv/bin/rbenv init -)"
+	# Remember! And verify it before running!
+	# git clone https://github.com/rbenv/ruby-build.git "$(rbenv root)"/plugins/ruby-build
+fi
+
+# Add RubyGems to PATH
+if hash ruby 2> /dev/null; then
+	PATH="$(ruby -e 'print Gem.user_dir')/bin:$PATH"
+fi
+
+# https://github.com/pyenv/pyenv
+if [ -f /home/linuxbrew/.linuxbrew/opt/pyenv/bin/pyenv ]; then
+	eval "$(/home/linuxbrew/.linuxbrew/opt/pyenv/bin/pyenv init -)"
+	PATH=/home/linuxbrew/.linuxbrew/opt/pyenv/bin/shims:$PATH
+elif [ -d ~/.pyenv/bin ]; then
+	eval "$(~/.pyenv/bin/pyenv init -)"
+	# Worth considering (and verifying before running)
+	# git clone https://github.com/pyenv/pyenv-virtualenv.git $(pyenv root)/plugins/pyenv-virtualenv
+	# git clone https://github.com/pyenv/pyenv-virtualenvwrapper.git $(pyenv root)/plugins/pyenv-virtualenvwrapper
+fi
+
+# https://github.com/nodenv/nodenv
+if [ -f /home/linuxbrew/.linuxbrew/opt/nodenv/bin/nodenv ]; then
+	eval "$(/home/linuxbrew/.linuxbrew/opt/nodenv/bin/nodenv init -)"
+	PATH=/home/linuxbrew/.linuxbrew/opt/nodenv/bin/shims:$PATH
+elif [ -d ~/.nodenv/bin/nodenv ]; then
+	eval "$(~/.nodenv/bin/nodenv init -)"
+	# Remember! And verify it before running!
+	# git clone https://github.com/nodenv/node-build.git "$(nodenv root)"/plugins/node-build
+fi
+
+# https://github.com/Homebrew/brew
+if [ -d /home/linuxbrew/.linuxbrew/bin ]; then
+	eval $(/home/linuxbrew/.linuxbrew/bin/brew shellenv)
+fi

etc/profile.d/99-brew.sh

@@ -1,15 +0,0 @@
-# https://github.com/Homebrew/brew
-if [ -d /home/linuxbrew/.linuxbrew/bin ]; then
-	eval "$(/home/linuxbrew/.linuxbrew/bin/brew shellenv)"
-fi
-
-# https://github.com/nvm-sh/nvm
-if [ -d ~/.nvm ]; then
-	. ~/.nvm/nvm.sh
-	. ~/.nvm/bash_completion
-elif [ -d /home/linuxbrew/.linuxbrew/opt/nvm ]; then
-	mkdir -p /home/linuxbrew/.nvm
-	export NVM_DIR=/home/linuxbrew/.nvm
-	. /home/linuxbrew/.linuxbrew/opt/nvm/nvm.sh
-#	. /home/linuxbrew/.linuxbrew/opt/nvm/etc/bash_completion.d/nvm
-fi

etc/systemd/system/aminda-nocron-reboot.service

@@ -38,8 +38,8 @@ ExecStart=-/usr/bin/systemctl enable --now sshguard.service
 ExecStart=-/usr/bin/systemctl enable --now unbound.service
 ExecStart=-/usr/bin/systemctl enable --now chrony.service
 ExecStart=-/usr/bin/systemctl enable --now chronyd.service
-ExecStart=-/bin/chown -R root:$LINUXBREWGROUP /home/linuxbrew -R
+ExecStart=-/bin/chown -R root:${LINUXBREWGROUP} /home/linuxbrew -R
-ExecStart=-/bin/setfacl -R -m g:$LINUXBREWGROUP:rwx,o:rx /home/linuxbrew
+ExecStart=-/bin/setfacl -R -m g:${LINUXBREWGROUP}:rwx,o:rx /home/linuxbrew
 User=root
 StandardOutput=journal
 StandardError=journal

rc/bashrc

@@ -268,40 +268,31 @@ export LOCALDOMAIN=.
 export RES_OPTIONS="timeout:2 attempts:2 rotate edns0 trust-ad"
 
 # https://github.com/go-nv/goenv
-if [ -d ~/.goenv/bin ]; then
+if [ -f /home/linuxbrew/.linuxbrew/opt/goenv/bin/goenv ]; then
-	export GOENV_ROOT="$HOME/.goenv"
+	eval "$(/home/linuxbrew/.linuxbrew/opt/goenv/bin/goenv init -)"
-	PATH="$GOENV_ROOT/bin:$PATH"
+	PATH=/home/linuxbrew/.linuxbrew/opt/goenv/bin/shims:$PATH
-	eval "$(goenv init -)"
+elif [ -f ~/.goenv/bin/goenv ]; then
-	PATH="$GOROOT/bin:$PATH"
+	eval "$(~/.goenv/bin/goenv init -)"
-	PATH="$PATH:$GOPATH/bin"
-elif [ -d /home/linuxbrew/.linuxbrew/opt/goenv ]; then
-	export GOENV_ROOT="$/home/linuxbrew/.linuxbrew/opt/goenv"
-	PATH="$GOENV_ROOT/bin:$PATH"
-	eval "$(goenv init -)"
-	PATH="$GOROOT/bin:$PATH"
-	PATH="$PATH:$GOPATH/bin"
 fi
 
 # https://github.com/nvm-sh/nvm
-if [ -d ~/.nvm ]; then
+if [ -d /home/linuxbrew/.linuxbrew/opt/nvm ]; then
-	. ~/.nvm/nvm.sh
-	. ~/.nvm/bash_completion
-elif [ -d /home/linuxbrew/.linuxbrew/opt/nvm ]; then
 	mkdir -p /home/linuxbrew/.nvm
 	export NVM_DIR=/home/linuxbrew/.nvm
 	. /home/linuxbrew/.linuxbrew/opt/nvm/nvm.sh
-	#. /home/linuxbrew/.linuxbrew/opt/nvm/etc/bash_completion.d/nvm
+elif [ -d ~/.nvm ]; then
+	. ~/.nvm/nvm.sh
+	. ~/.nvm/bash_completion
 fi
 
 # https://github.com/rbenv/rbenv
-if [ -d ~/.rbenv/bin ]; then
+if [ -f /home/linuxbrew/.linuxbrew/opt/rbenv/bin/rbenv ]; then
-	PATH="$HOME/.rbenv/bin:$HOME/.rbenv/shims:$PATH"
+	eval "$(/home/linuxbrew/.linuxbrew/opt/rbenv/bin/rbenv init -)"
-	eval "$(rbenv init -)"
+	PATH=/home/linuxbrew/.linuxbrew/opt/rbenv/bin/shims:$PATH
+elif [ -f ~/.rbenv/bin/rbenv ]; then
+	eval "$(~/.rbenv/bin/rbenv init -)"
 	# Remember! And verify it before running!
 	# git clone https://github.com/rbenv/ruby-build.git "$(rbenv root)"/plugins/ruby-build
-elif [ -d /home/linuxbrew/.linuxbrew/opt/rbenv/bin ]; then
-	PATH="/home/linuxbrew/.linuxbrew/opt/rbenv/bin:/home/linuxbrew/.linuxbrew/opt/rbenv/bin/shims:$PATH"
-	eval "$(rbenv init -)"
 fi
 
 # Add RubyGems to PATH
@@ -310,26 +301,24 @@ if hash ruby 2> /dev/null; then
 fi
 
 # https://github.com/pyenv/pyenv
-if [ -d ~/.pyenv/bin ]; then
+if [ -f /home/linuxbrew/.linuxbrew/opt/pyenv/bin/pyenv ]; then
-	PATH="$HOME/.pyenv/bin:$HOME/.pyenv/shims:$PATH"
+	eval "$(/home/linuxbrew/.linuxbrew/opt/pyenv/bin/pyenv init -)"
-	eval "$(pyenv init -)"
+	PATH=/home/linuxbrew/.linuxbrew/opt/pyenv/bin/shims:$PATH
+elif [ -d ~/.pyenv/bin ]; then
+	eval "$(~/.pyenv/bin/pyenv init -)"
 	# Worth considering (and verifying before running)
 	# git clone https://github.com/pyenv/pyenv-virtualenv.git $(pyenv root)/plugins/pyenv-virtualenv
 	# git clone https://github.com/pyenv/pyenv-virtualenvwrapper.git $(pyenv root)/plugins/pyenv-virtualenvwrapper
-elif [ -d /home/linuxbrew/.linuxbrew/opt/pyenv/bin ]; then
-	PATH="/home/linuxbrew/.linuxbrew/opt/pyenv/bin:/home/linuxbrew/.linuxbrew/opt/pyenv/shims:$PATH"
-	eval "$(pyenv init -)"
 fi
 
 # https://github.com/nodenv/nodenv
-if [ -d ~/.nodenv/bin ]; then
+if [ -f /home/linuxbrew/.linuxbrew/opt/nodenv/bin/nodenv ]; then
-	PATH="$HOME/.nodenv/bin:$PATH"
+	eval "$(/home/linuxbrew/.linuxbrew/opt/nodenv/bin/nodenv init -)"
-	eval "$(nodenv init -)"
+	PATH=/home/linuxbrew/.linuxbrew/opt/nodenv/bin/shims:$PATH
+elif [ -d ~/.nodenv/bin/nodenv ]; then
+	eval "$(~/.nodenv/bin/nodenv init -)"
 	# Remember! And verify it before running!
 	# git clone https://github.com/nodenv/node-build.git "$(nodenv root)"/plugins/node-build
-elif [ -d /home/linuxbrew/.linuxbrew/opt/nodenv/bin ]; then
-	PATH="/home/linuxbrew/.linuxbrew/opt/nodenv/bin:$PATH"
-	eval "$(nodenv init -)"
 fi
 
 # https://github.com/Homebrew/brew

rc/zshrc

@@ -222,40 +222,31 @@ export LOCALDOMAIN=.
 export RES_OPTIONS="timeout:2 attempts:2 rotate edns0 trust-ad"
 
 # https://github.com/go-nv/goenv
-if [ -d ~/.goenv/bin ]; then
+if [ -f /home/linuxbrew/.linuxbrew/opt/goenv/bin/goenv ]; then
-	export GOENV_ROOT="$HOME/.goenv"
+	eval "$(/home/linuxbrew/.linuxbrew/opt/goenv/bin/goenv init -)"
-	PATH="$GOENV_ROOT/bin:$PATH"
+	PATH=/home/linuxbrew/.linuxbrew/opt/goenv/bin/shims:$PATH
-	eval "$(goenv init -)"
+elif [ -f ~/.goenv/bin/goenv ]; then
-	PATH="$GOROOT/bin:$PATH"
+	eval "$(~/.goenv/bin/goenv init -)"
-	PATH="$PATH:$GOPATH/bin"
-elif [ -d /home/linuxbrew/.linuxbrew/opt/goenv ]; then
-	export GOENV_ROOT="$/home/linuxbrew/.linuxbrew/opt/goenv"
-	PATH="$GOENV_ROOT/bin:$PATH"
-	eval "$(goenv init -)"
-	PATH="$GOROOT/bin:$PATH"
-	PATH="$PATH:$GOPATH/bin"
 fi
 
 # https://github.com/nvm-sh/nvm
-if [ -d ~/.nvm ]; then
+if [ -d /home/linuxbrew/.linuxbrew/opt/nvm ]; then
-	. ~/.nvm/nvm.sh
-	. ~/.nvm/bash_completion
-elif [ -d /home/linuxbrew/.linuxbrew/opt/nvm ]; then
 	mkdir -p /home/linuxbrew/.nvm
 	export NVM_DIR=/home/linuxbrew/.nvm
 	. /home/linuxbrew/.linuxbrew/opt/nvm/nvm.sh
-	#. /home/linuxbrew/.linuxbrew/opt/nvm/etc/bash_completion.d/nvm
+elif [ -d ~/.nvm ]; then
+	. ~/.nvm/nvm.sh
+	. ~/.nvm/bash_completion
 fi
 
 # https://github.com/rbenv/rbenv
-if [ -d ~/.rbenv/bin ]; then
+if [ -f /home/linuxbrew/.linuxbrew/opt/rbenv/bin/rbenv ]; then
-	PATH="$HOME/.rbenv/bin:$HOME/.rbenv/shims:$PATH"
+	eval "$(/home/linuxbrew/.linuxbrew/opt/rbenv/bin/rbenv init -)"
-	eval "$(rbenv init -)"
+	PATH=/home/linuxbrew/.linuxbrew/opt/rbenv/bin/shims:$PATH
+elif [ -f ~/.rbenv/bin/rbenv ]; then
+	eval "$(~/.rbenv/bin/rbenv init -)"
 	# Remember! And verify it before running!
 	# git clone https://github.com/rbenv/ruby-build.git "$(rbenv root)"/plugins/ruby-build
-elif [ -d /home/linuxbrew/.linuxbrew/opt/rbenv/bin ]; then
-	PATH="/home/linuxbrew/.linuxbrew/opt/rbenv/bin:/home/linuxbrew/.linuxbrew/opt/rbenv/bin/shims:$PATH"
-	eval "$(rbenv init -)"
 fi
 
 # Add RubyGems to PATH
@@ -264,26 +255,24 @@ if hash ruby 2> /dev/null; then
 fi
 
 # https://github.com/pyenv/pyenv
-if [ -d ~/.pyenv/bin ]; then
+if [ -f /home/linuxbrew/.linuxbrew/opt/pyenv/bin/pyenv ]; then
-	PATH="$HOME/.pyenv/bin:$HOME/.pyenv/shims:$PATH"
+	eval "$(/home/linuxbrew/.linuxbrew/opt/pyenv/bin/pyenv init -)"
-	eval "$(pyenv init -)"
+	PATH=/home/linuxbrew/.linuxbrew/opt/pyenv/bin/shims:$PATH
+elif [ -d ~/.pyenv/bin ]; then
+	eval "$(~/.pyenv/bin/pyenv init -)"
 	# Worth considering (and verifying before running)
 	# git clone https://github.com/pyenv/pyenv-virtualenv.git $(pyenv root)/plugins/pyenv-virtualenv
 	# git clone https://github.com/pyenv/pyenv-virtualenvwrapper.git $(pyenv root)/plugins/pyenv-virtualenvwrapper
-elif [ -d /home/linuxbrew/.linuxbrew/opt/pyenv/bin ]; then
-	PATH="/home/linuxbrew/.linuxbrew/opt/pyenv/bin:/home/linuxbrew/.linuxbrew/opt/pyenv/shims:$PATH"
-	eval "$(pyenv init -)"
 fi
 
 # https://github.com/nodenv/nodenv
-if [ -d ~/.nodenv/bin ]; then
+if [ -f /home/linuxbrew/.linuxbrew/opt/nodenv/bin/nodenv ]; then
-	PATH="$HOME/.nodenv/bin:$PATH"
+	eval "$(/home/linuxbrew/.linuxbrew/opt/nodenv/bin/nodenv init -)"
-	eval "$(nodenv init -)"
+	PATH=/home/linuxbrew/.linuxbrew/opt/nodenv/bin/shims:$PATH
+elif [ -d ~/.nodenv/bin/nodenv ]; then
+	eval "$(~/.nodenv/bin/nodenv init -)"
 	# Remember! And verify it before running!
 	# git clone https://github.com/nodenv/node-build.git "$(nodenv root)"/plugins/node-build
-elif [ -d /home/linuxbrew/.linuxbrew/opt/nodenv/bin ]; then
-	PATH="/home/linuxbrew/.linuxbrew/opt/nodenv/bin:$PATH"
-	eval "$(nodenv init -)"
 fi
 
 # https://github.com/Homebrew/brew