diff --git a/backend/.vscode/settings.json b/backend/.vscode/settings.json
index e36cb65..cef34b2 100644
--- a/backend/.vscode/settings.json
+++ b/backend/.vscode/settings.json
@@ -1,3 +1,3 @@
 {
-    "python.pythonPath": "/usr/bin/python3.8"
+    "python.pythonPath": "pyenv/bin/python"
 }
\ No newline at end of file
diff --git a/backend/pyenv/bin/Activate.ps1 b/backend/pyenv/bin/Activate.ps1
new file mode 100644
index 0000000..900f50e
--- /dev/null
+++ b/backend/pyenv/bin/Activate.ps1
@@ -0,0 +1,230 @@
+<#
+.Synopsis
+Activate a Python virtual environment for the current Powershell session.
+
+.Description
+Pushes the python executable for a virtual environment to the front of the
+$Env:PATH environment variable and sets the prompt to signify that you are
+in a Python virtual environment. Makes use of the command line switches as
+well as the `pyvenv.cfg` file values present in the virtual environment.
+
+.Parameter VenvDir
+Path to the directory that contains the virtual environment to activate. The
+default value for this is the parent of the directory that the Activate.ps1
+script is located within.
+
+.Parameter Prompt
+The prompt prefix to display when this virtual environment is activated. By
+default, this prompt is the name of the virtual environment folder (VenvDir)
+surrounded by parentheses and followed by a single space (ie. '(.venv) ').
+
+.Example
+Activate.ps1
+Activates the Python virtual environment that contains the Activate.ps1 script.
+
+.Example
+Activate.ps1 -Verbose
+Activates the Python virtual environment that contains the Activate.ps1 script,
+and shows extra information about the activation as it executes.
+
+.Example
+Activate.ps1 -VenvDir C:\Users\MyUser\Common\.venv
+Activates the Python virtual environment located in the specified location.
+
+.Example
+Activate.ps1 -Prompt "MyPython"
+Activates the Python virtual environment that contains the Activate.ps1 script,
+and prefixes the current prompt with the specified string (surrounded in
+parentheses) while the virtual environment is active.
+
+
+#>
+Param(
+    [Parameter(Mandatory = $false)]
+    [String]
+    $VenvDir,
+    [Parameter(Mandatory = $false)]
+    [String]
+    $Prompt
+)
+
+<# Function declarations --------------------------------------------------- #>
+
+<#
+.Synopsis
+Remove all shell session elements added by the Activate script, including the
+addition of the virtual environment's Python executable from the beginning of
+the PATH variable.
+
+.Parameter NonDestructive
+If present, do not remove this function from the global namespace for the
+session.
+
+#>
+function global:deactivate ([switch]$NonDestructive) {
+    # Revert to original values
+
+    # The prior prompt:
+    if (Test-Path -Path Function:_OLD_VIRTUAL_PROMPT) {
+        Copy-Item -Path Function:_OLD_VIRTUAL_PROMPT -Destination Function:prompt
+        Remove-Item -Path Function:_OLD_VIRTUAL_PROMPT
+    }
+
+    # The prior PYTHONHOME:
+    if (Test-Path -Path Env:_OLD_VIRTUAL_PYTHONHOME) {
+        Copy-Item -Path Env:_OLD_VIRTUAL_PYTHONHOME -Destination Env:PYTHONHOME
+        Remove-Item -Path Env:_OLD_VIRTUAL_PYTHONHOME
+    }
+
+    # The prior PATH:
+    if (Test-Path -Path Env:_OLD_VIRTUAL_PATH) {
+        Copy-Item -Path Env:_OLD_VIRTUAL_PATH -Destination Env:PATH
+        Remove-Item -Path Env:_OLD_VIRTUAL_PATH
+    }
+
+    # Just remove the VIRTUAL_ENV altogether:
+    if (Test-Path -Path Env:VIRTUAL_ENV) {
+        Remove-Item -Path env:VIRTUAL_ENV
+    }
+
+    # Just remove the _PYTHON_VENV_PROMPT_PREFIX altogether:
+    if (Get-Variable -Name "_PYTHON_VENV_PROMPT_PREFIX" -ErrorAction SilentlyContinue) {
+        Remove-Variable -Name _PYTHON_VENV_PROMPT_PREFIX -Scope Global -Force
+    }
+
+    # Leave deactivate function in the global namespace if requested:
+    if (-not $NonDestructive) {
+        Remove-Item -Path function:deactivate
+    }
+}
+
+<#
+.Description
+Get-PyVenvConfig parses the values from the pyvenv.cfg file located in the
+given folder, and returns them in a map.
+
+For each line in the pyvenv.cfg file, if that line can be parsed into exactly
+two strings separated by `=` (with any amount of whitespace surrounding the =)
+then it is considered a `key = value` line. The left hand string is the key,
+the right hand is the value.
+
+If the value starts with a `'` or a `"` then the first and last character is
+stripped from the value before being captured.
+
+.Parameter ConfigDir
+Path to the directory that contains the `pyvenv.cfg` file.
+#>
+function Get-PyVenvConfig(
+    [String]
+    $ConfigDir
+) {
+    Write-Verbose "Given ConfigDir=$ConfigDir, obtain values in pyvenv.cfg"
+
+    # Ensure the file exists, and issue a warning if it doesn't (but still allow the function to continue).
+    $pyvenvConfigPath = Join-Path -Resolve -Path $ConfigDir -ChildPath 'pyvenv.cfg' -ErrorAction Continue
+
+    # An empty map will be returned if no config file is found.
+    $pyvenvConfig = @{ }
+
+    if ($pyvenvConfigPath) {
+
+        Write-Verbose "File exists, parse `key = value` lines"
+        $pyvenvConfigContent = Get-Content -Path $pyvenvConfigPath
+
+        $pyvenvConfigContent | ForEach-Object {
+            $keyval = $PSItem -split "\s*=\s*", 2
+            if ($keyval[0] -and $keyval[1]) {
+                $val = $keyval[1]
+
+                # Remove extraneous quotations around a string value.
+                if ("'""".Contains($val.Substring(0,1))) {
+                    $val = $val.Substring(1, $val.Length - 2)
+                }
+
+                $pyvenvConfig[$keyval[0]] = $val
+                Write-Verbose "Adding Key: '$($keyval[0])'='$val'"
+            }
+        }
+    }
+    return $pyvenvConfig
+}
+
+
+<# Begin Activate script --------------------------------------------------- #>
+
+# Determine the containing directory of this script
+$VenvExecPath = Split-Path -Parent $MyInvocation.MyCommand.Definition
+$VenvExecDir = Get-Item -Path $VenvExecPath
+
+Write-Verbose "Activation script is located in path: '$VenvExecPath'"
+Write-Verbose "VenvExecDir Fullname: '$($VenvExecDir.FullName)"
+Write-Verbose "VenvExecDir Name: '$($VenvExecDir.Name)"
+
+# Set values required in priority: CmdLine, ConfigFile, Default
+# First, get the location of the virtual environment, it might not be
+# VenvExecDir if specified on the command line.
+if ($VenvDir) {
+    Write-Verbose "VenvDir given as parameter, using '$VenvDir' to determine values"
+} else {
+    Write-Verbose "VenvDir not given as a parameter, using parent directory name as VenvDir."
+    $VenvDir = $VenvExecDir.Parent.FullName.TrimEnd("\\/")
+    Write-Verbose "VenvDir=$VenvDir"
+}
+
+# Next, read the `pyvenv.cfg` file to determine any required value such
+# as `prompt`.
+$pyvenvCfg = Get-PyVenvConfig -ConfigDir $VenvDir
+
+# Next, set the prompt from the command line, or the config file, or
+# just use the name of the virtual environment folder.
+if ($Prompt) {
+    Write-Verbose "Prompt specified as argument, using '$Prompt'"
+} else {
+    Write-Verbose "Prompt not specified as argument to script, checking pyvenv.cfg value"
+    if ($pyvenvCfg -and $pyvenvCfg['prompt']) {
+        Write-Verbose "  Setting based on value in pyvenv.cfg='$($pyvenvCfg['prompt'])'"
+        $Prompt = $pyvenvCfg['prompt'];
+    }
+    else {
+        Write-Verbose "  Setting prompt based on parent's directory's name. (Is the directory name passed to venv module when creating the virutal environment)"
+        Write-Verbose "  Got leaf-name of $VenvDir='$(Split-Path -Path $venvDir -Leaf)'"
+        $Prompt = Split-Path -Path $venvDir -Leaf
+    }
+}
+
+Write-Verbose "Prompt = '$Prompt'"
+Write-Verbose "VenvDir='$VenvDir'"
+
+# Deactivate any currently active virtual environment, but leave the
+# deactivate function in place.
+deactivate -nondestructive
+
+# Now set the environment variable VIRTUAL_ENV, used by many tools to determine
+# that there is an activated venv.
+$env:VIRTUAL_ENV = $VenvDir
+
+if (-not $Env:VIRTUAL_ENV_DISABLE_PROMPT) {
+
+    Write-Verbose "Setting prompt to '$Prompt'"
+
+    # Set the prompt to include the env name
+    # Make sure _OLD_VIRTUAL_PROMPT is global
+    function global:_OLD_VIRTUAL_PROMPT { "" }
+    Copy-Item -Path function:prompt -Destination function:_OLD_VIRTUAL_PROMPT
+    New-Variable -Name _PYTHON_VENV_PROMPT_PREFIX -Description "Python virtual environment prompt prefix" -Scope Global -Option ReadOnly -Visibility Public -Value $Prompt
+
+    function global:prompt {
+        Write-Host -NoNewline -ForegroundColor Green "($_PYTHON_VENV_PROMPT_PREFIX) "
+        _OLD_VIRTUAL_PROMPT
+    }
+}
+
+# Clear PYTHONHOME
+if (Test-Path -Path Env:PYTHONHOME) {
+    Copy-Item -Path Env:PYTHONHOME -Destination Env:_OLD_VIRTUAL_PYTHONHOME
+    Remove-Item -Path Env:PYTHONHOME
+}
+
+# Add the venv to the PATH
+Copy-Item -Path Env:PATH -Destination Env:_OLD_VIRTUAL_PATH
+$Env:PATH = "$VenvExecDir$([System.IO.Path]::PathSeparator)$Env:PATH"
diff --git a/backend/pyenv/bin/activate b/backend/pyenv/bin/activate
new file mode 100644
index 0000000..e770c0e
--- /dev/null
+++ b/backend/pyenv/bin/activate
@@ -0,0 +1,76 @@
+# This file must be used with "source bin/activate" *from bash*
+# you cannot run it directly
+
+deactivate () {
+    # reset old environment variables
+    if [ -n "${_OLD_VIRTUAL_PATH:-}" ] ; then
+        PATH="${_OLD_VIRTUAL_PATH:-}"
+        export PATH
+        unset _OLD_VIRTUAL_PATH
+    fi
+    if [ -n "${_OLD_VIRTUAL_PYTHONHOME:-}" ] ; then
+        PYTHONHOME="${_OLD_VIRTUAL_PYTHONHOME:-}"
+        export PYTHONHOME
+        unset _OLD_VIRTUAL_PYTHONHOME
+    fi
+
+    # This should detect bash and zsh, which have a hash command that must
+    # be called to get it to forget past commands.  Without forgetting
+    # past commands the $PATH changes we made may not be respected
+    if [ -n "${BASH:-}" -o -n "${ZSH_VERSION:-}" ] ; then
+        hash -r
+    fi
+
+    if [ -n "${_OLD_VIRTUAL_PS1:-}" ] ; then
+        PS1="${_OLD_VIRTUAL_PS1:-}"
+        export PS1
+        unset _OLD_VIRTUAL_PS1
+    fi
+
+    unset VIRTUAL_ENV
+    if [ ! "${1:-}" = "nondestructive" ] ; then
+    # Self destruct!
+        unset -f deactivate
+    fi
+}
+
+# unset irrelevant variables
+deactivate nondestructive
+
+VIRTUAL_ENV="/home/phillipk/Projekte/Software/StuK/KaraokeWarteliste/backend/pyenv"
+export VIRTUAL_ENV
+
+_OLD_VIRTUAL_PATH="$PATH"
+PATH="$VIRTUAL_ENV/bin:$PATH"
+export PATH
+
+# unset PYTHONHOME if set
+# this will fail if PYTHONHOME is set to the empty string (which is bad anyway)
+# could use `if (set -u; : $PYTHONHOME) ;` in bash
+if [ -n "${PYTHONHOME:-}" ] ; then
+    _OLD_VIRTUAL_PYTHONHOME="${PYTHONHOME:-}"
+    unset PYTHONHOME
+fi
+
+if [ -z "${VIRTUAL_ENV_DISABLE_PROMPT:-}" ] ; then
+    _OLD_VIRTUAL_PS1="${PS1:-}"
+    if [ "x(pyenv) " != x ] ; then
+	PS1="(pyenv) ${PS1:-}"
+    else
+    if [ "`basename \"$VIRTUAL_ENV\"`" = "__" ] ; then
+        # special case for Aspen magic directories
+        # see http://www.zetadev.com/software/aspen/
+        PS1="[`basename \`dirname \"$VIRTUAL_ENV\"\``] $PS1"
+    else
+        PS1="(`basename \"$VIRTUAL_ENV\"`)$PS1"
+    fi
+    fi
+    export PS1
+fi
+
+# This should detect bash and zsh, which have a hash command that must
+# be called to get it to forget past commands.  Without forgetting
+# past commands the $PATH changes we made may not be respected
+if [ -n "${BASH:-}" -o -n "${ZSH_VERSION:-}" ] ; then
+    hash -r
+fi
diff --git a/backend/pyenv/bin/activate.csh b/backend/pyenv/bin/activate.csh
new file mode 100644
index 0000000..cc5505e
--- /dev/null
+++ b/backend/pyenv/bin/activate.csh
@@ -0,0 +1,37 @@
+# This file must be used with "source bin/activate.csh" *from csh*.
+# You cannot run it directly.
+# Created by Davide Di Blasi <davidedb@gmail.com>.
+# Ported to Python 3.3 venv by Andrew Svetlov <andrew.svetlov@gmail.com>
+
+alias deactivate 'test $?_OLD_VIRTUAL_PATH != 0 && setenv PATH "$_OLD_VIRTUAL_PATH" && unset _OLD_VIRTUAL_PATH; rehash; test $?_OLD_VIRTUAL_PROMPT != 0 && set prompt="$_OLD_VIRTUAL_PROMPT" && unset _OLD_VIRTUAL_PROMPT; unsetenv VIRTUAL_ENV; test "\!:*" != "nondestructive" && unalias deactivate'
+
+# Unset irrelevant variables.
+deactivate nondestructive
+
+setenv VIRTUAL_ENV "/home/phillipk/Projekte/Software/StuK/KaraokeWarteliste/backend/pyenv"
+
+set _OLD_VIRTUAL_PATH="$PATH"
+setenv PATH "$VIRTUAL_ENV/bin:$PATH"
+
+
+set _OLD_VIRTUAL_PROMPT="$prompt"
+
+if (! "$?VIRTUAL_ENV_DISABLE_PROMPT") then
+    if ("pyenv" != "") then
+        set env_name = "pyenv"
+    else
+        if (`basename "VIRTUAL_ENV"` == "__") then
+            # special case for Aspen magic directories
+            # see http://www.zetadev.com/software/aspen/
+            set env_name = `basename \`dirname "$VIRTUAL_ENV"\``
+        else
+            set env_name = `basename "$VIRTUAL_ENV"`
+        endif
+    endif
+    set prompt = "[$env_name] $prompt"
+    unset env_name
+endif
+
+alias pydoc python -m pydoc
+
+rehash
diff --git a/backend/pyenv/bin/activate.fish b/backend/pyenv/bin/activate.fish
new file mode 100644
index 0000000..c220544
--- /dev/null
+++ b/backend/pyenv/bin/activate.fish
@@ -0,0 +1,75 @@
+# This file must be used with ". bin/activate.fish" *from fish* (http://fishshell.org)
+# you cannot run it directly
+
+function deactivate  -d "Exit virtualenv and return to normal shell environment"
+    # reset old environment variables
+    if test -n "$_OLD_VIRTUAL_PATH"
+        set -gx PATH $_OLD_VIRTUAL_PATH
+        set -e _OLD_VIRTUAL_PATH
+    end
+    if test -n "$_OLD_VIRTUAL_PYTHONHOME"
+        set -gx PYTHONHOME $_OLD_VIRTUAL_PYTHONHOME
+        set -e _OLD_VIRTUAL_PYTHONHOME
+    end
+
+    if test -n "$_OLD_FISH_PROMPT_OVERRIDE"
+        functions -e fish_prompt
+        set -e _OLD_FISH_PROMPT_OVERRIDE
+        functions -c _old_fish_prompt fish_prompt
+        functions -e _old_fish_prompt
+    end
+
+    set -e VIRTUAL_ENV
+    if test "$argv[1]" != "nondestructive"
+        # Self destruct!
+        functions -e deactivate
+    end
+end
+
+# unset irrelevant variables
+deactivate nondestructive
+
+set -gx VIRTUAL_ENV "/home/phillipk/Projekte/Software/StuK/KaraokeWarteliste/backend/pyenv"
+
+set -gx _OLD_VIRTUAL_PATH $PATH
+set -gx PATH "$VIRTUAL_ENV/bin" $PATH
+
+# unset PYTHONHOME if set
+if set -q PYTHONHOME
+    set -gx _OLD_VIRTUAL_PYTHONHOME $PYTHONHOME
+    set -e PYTHONHOME
+end
+
+if test -z "$VIRTUAL_ENV_DISABLE_PROMPT"
+    # fish uses a function instead of an env var to generate the prompt.
+
+    # save the current fish_prompt function as the function _old_fish_prompt
+    functions -c fish_prompt _old_fish_prompt
+
+    # with the original prompt function renamed, we can override with our own.
+    function fish_prompt
+        # Save the return status of the last command
+        set -l old_status $status
+
+        # Prompt override?
+        if test -n "(pyenv) "
+            printf "%s%s" "(pyenv) " (set_color normal)
+        else
+            # ...Otherwise, prepend env
+            set -l _checkbase (basename "$VIRTUAL_ENV")
+            if test $_checkbase = "__"
+                # special case for Aspen magic directories
+                # see http://www.zetadev.com/software/aspen/
+                printf "%s[%s]%s " (set_color -b blue white) (basename (dirname "$VIRTUAL_ENV")) (set_color normal)
+            else
+                printf "%s(%s)%s" (set_color -b blue white) (basename "$VIRTUAL_ENV") (set_color normal)
+            end
+        end
+
+        # Restore the return status of the previous command.
+        echo "exit $old_status" | .
+        _old_fish_prompt
+    end
+
+    set -gx _OLD_FISH_PROMPT_OVERRIDE "$VIRTUAL_ENV"
+end
diff --git a/backend/pyenv/bin/autopep8 b/backend/pyenv/bin/autopep8
new file mode 100755
index 0000000..fcfa801
--- /dev/null
+++ b/backend/pyenv/bin/autopep8
@@ -0,0 +1,12 @@
+#!/home/phillipk/Projekte/Software/StuK/KaraokeWarteliste/backend/pyenv/bin/python
+# EASY-INSTALL-ENTRY-SCRIPT: 'autopep8==1.5','console_scripts','autopep8'
+__requires__ = 'autopep8==1.5'
+import re
+import sys
+from pkg_resources import load_entry_point
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(
+        load_entry_point('autopep8==1.5', 'console_scripts', 'autopep8')()
+    )
diff --git a/backend/pyenv/bin/chardetect b/backend/pyenv/bin/chardetect
new file mode 100755
index 0000000..049b5a1
--- /dev/null
+++ b/backend/pyenv/bin/chardetect
@@ -0,0 +1,10 @@
+#!/home/phillipk/Projekte/Software/StuK/KaraokeWarteliste/backend/pyenv/bin/python3
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from chardet.cli.chardetect import main
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())
diff --git a/backend/pyenv/bin/easy_install b/backend/pyenv/bin/easy_install
new file mode 100755
index 0000000..9445928
--- /dev/null
+++ b/backend/pyenv/bin/easy_install
@@ -0,0 +1,10 @@
+#!/home/phillipk/Projekte/Software/StuK/KaraokeWarteliste/backend/pyenv/bin/python3
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from setuptools.command.easy_install import main
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())
diff --git a/backend/pyenv/bin/easy_install-3.8 b/backend/pyenv/bin/easy_install-3.8
new file mode 100755
index 0000000..9445928
--- /dev/null
+++ b/backend/pyenv/bin/easy_install-3.8
@@ -0,0 +1,10 @@
+#!/home/phillipk/Projekte/Software/StuK/KaraokeWarteliste/backend/pyenv/bin/python3
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from setuptools.command.easy_install import main
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())
diff --git a/backend/pyenv/bin/epylint b/backend/pyenv/bin/epylint
new file mode 100755
index 0000000..2f7dfeb
--- /dev/null
+++ b/backend/pyenv/bin/epylint
@@ -0,0 +1,10 @@
+#!/home/phillipk/Projekte/Software/StuK/KaraokeWarteliste/backend/pyenv/bin/python
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from pylint import run_epylint
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(run_epylint())
diff --git a/backend/pyenv/bin/f2py b/backend/pyenv/bin/f2py
new file mode 100755
index 0000000..35345cf
--- /dev/null
+++ b/backend/pyenv/bin/f2py
@@ -0,0 +1,10 @@
+#!/home/phillipk/Projekte/Software/StuK/KaraokeWarteliste/backend/pyenv/bin/python3
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from numpy.f2py.f2py2e import main
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())
diff --git a/backend/pyenv/bin/f2py3 b/backend/pyenv/bin/f2py3
new file mode 100755
index 0000000..35345cf
--- /dev/null
+++ b/backend/pyenv/bin/f2py3
@@ -0,0 +1,10 @@
+#!/home/phillipk/Projekte/Software/StuK/KaraokeWarteliste/backend/pyenv/bin/python3
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from numpy.f2py.f2py2e import main
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())
diff --git a/backend/pyenv/bin/f2py3.8 b/backend/pyenv/bin/f2py3.8
new file mode 100755
index 0000000..35345cf
--- /dev/null
+++ b/backend/pyenv/bin/f2py3.8
@@ -0,0 +1,10 @@
+#!/home/phillipk/Projekte/Software/StuK/KaraokeWarteliste/backend/pyenv/bin/python3
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from numpy.f2py.f2py2e import main
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())
diff --git a/backend/pyenv/bin/flask b/backend/pyenv/bin/flask
new file mode 100755
index 0000000..56b2121
--- /dev/null
+++ b/backend/pyenv/bin/flask
@@ -0,0 +1,10 @@
+#!/home/phillipk/Projekte/Software/StuK/KaraokeWarteliste/backend/pyenv/bin/python3
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from flask.cli import main
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())
diff --git a/backend/pyenv/bin/isort b/backend/pyenv/bin/isort
new file mode 100755
index 0000000..d0520e3
--- /dev/null
+++ b/backend/pyenv/bin/isort
@@ -0,0 +1,10 @@
+#!/home/phillipk/Projekte/Software/StuK/KaraokeWarteliste/backend/pyenv/bin/python
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from isort.main import main
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())
diff --git a/backend/pyenv/bin/pip b/backend/pyenv/bin/pip
new file mode 100755
index 0000000..2f465ea
--- /dev/null
+++ b/backend/pyenv/bin/pip
@@ -0,0 +1,10 @@
+#!/home/phillipk/Projekte/Software/StuK/KaraokeWarteliste/backend/pyenv/bin/python3
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from pip._internal import main
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())
diff --git a/backend/pyenv/bin/pip3 b/backend/pyenv/bin/pip3
new file mode 100755
index 0000000..2f465ea
--- /dev/null
+++ b/backend/pyenv/bin/pip3
@@ -0,0 +1,10 @@
+#!/home/phillipk/Projekte/Software/StuK/KaraokeWarteliste/backend/pyenv/bin/python3
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from pip._internal import main
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())
diff --git a/backend/pyenv/bin/pip3.8 b/backend/pyenv/bin/pip3.8
new file mode 100755
index 0000000..2f465ea
--- /dev/null
+++ b/backend/pyenv/bin/pip3.8
@@ -0,0 +1,10 @@
+#!/home/phillipk/Projekte/Software/StuK/KaraokeWarteliste/backend/pyenv/bin/python3
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from pip._internal import main
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(main())
diff --git a/backend/pyenv/bin/pycodestyle b/backend/pyenv/bin/pycodestyle
new file mode 100755
index 0000000..2381674
--- /dev/null
+++ b/backend/pyenv/bin/pycodestyle
@@ -0,0 +1,10 @@
+#!/home/phillipk/Projekte/Software/StuK/KaraokeWarteliste/backend/pyenv/bin/python
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from pycodestyle import _main
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(_main())
diff --git a/backend/pyenv/bin/pylint b/backend/pyenv/bin/pylint
new file mode 100755
index 0000000..184520d
--- /dev/null
+++ b/backend/pyenv/bin/pylint
@@ -0,0 +1,10 @@
+#!/home/phillipk/Projekte/Software/StuK/KaraokeWarteliste/backend/pyenv/bin/python
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from pylint import run_pylint
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(run_pylint())
diff --git a/backend/pyenv/bin/pyreverse b/backend/pyenv/bin/pyreverse
new file mode 100755
index 0000000..e06818e
--- /dev/null
+++ b/backend/pyenv/bin/pyreverse
@@ -0,0 +1,10 @@
+#!/home/phillipk/Projekte/Software/StuK/KaraokeWarteliste/backend/pyenv/bin/python
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from pylint import run_pyreverse
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(run_pyreverse())
diff --git a/backend/pyenv/bin/python b/backend/pyenv/bin/python
new file mode 120000
index 0000000..b8a0adb
--- /dev/null
+++ b/backend/pyenv/bin/python
@@ -0,0 +1 @@
+python3
\ No newline at end of file
diff --git a/backend/pyenv/bin/python3 b/backend/pyenv/bin/python3
new file mode 120000
index 0000000..ae65fda
--- /dev/null
+++ b/backend/pyenv/bin/python3
@@ -0,0 +1 @@
+/usr/bin/python3
\ No newline at end of file
diff --git a/backend/pyenv/bin/symilar b/backend/pyenv/bin/symilar
new file mode 100755
index 0000000..902730e
--- /dev/null
+++ b/backend/pyenv/bin/symilar
@@ -0,0 +1,10 @@
+#!/home/phillipk/Projekte/Software/StuK/KaraokeWarteliste/backend/pyenv/bin/python
+# -*- coding: utf-8 -*-
+import re
+import sys
+
+from pylint import run_symilar
+
+if __name__ == '__main__':
+    sys.argv[0] = re.sub(r'(-script\.pyw?|\.exe)?$', '', sys.argv[0])
+    sys.exit(run_symilar())
diff --git a/backend/pyenv/lib64 b/backend/pyenv/lib64
new file mode 120000
index 0000000..7951405
--- /dev/null
+++ b/backend/pyenv/lib64
@@ -0,0 +1 @@
+lib
\ No newline at end of file
diff --git a/backend/pyenv/pyvenv.cfg b/backend/pyenv/pyvenv.cfg
new file mode 100644
index 0000000..4118bb9
--- /dev/null
+++ b/backend/pyenv/pyvenv.cfg
@@ -0,0 +1,3 @@
+home = /usr/bin
+include-system-site-packages = false
+version = 3.8.2