$ cat about.txt

Marcel Leismann

Application Engineer

// I build software, manage Linux systems, and occasionally obsess over terminal color themes.

// Ich entwickle Software, administriere Linux-Systeme und verliere mich gelegentlich in Terminal-Farbschemata.

$ htop --user marcel

PID SKILL USAGE %

languages

1024 .NET / C# 90%

1031 MSSQL 80%

1042 HTML / CSS 75%

1057 JavaScript 50%

1063 TypeScript 45%

infrastructure

2048 Linux Administration 88%

2061 Docker 76%

2074 REST APIs 82%

2089 Proxmox 84%

tools

3072 Git 85%

3088 Vim / Neovim 60%

3094 Helix 82%

3107 Regex 73%

$ cat now.txt

learning Rust & TypeScript Rust & TypeScript

reading Heise News Heise News

building this website (you’re on it) diese Website (du bist hier)

updated 2026-04-09

$ man marcel

MARCEL(1)                       User Commands                      MARCEL(1)

NAME
       marcel - application engineer, linux enthusiast, FOSS lover, terminal addict

SYNOPSIS
       marcel [--hire] [--collaborate] [--coffee]

DESCRIPTION
       Studied mechanical engineering before discovering a love for
       software. Currently working as an Application Engineer with
       an itch to broaden the horizon. Prefers accuracy over speed
       and appreciates well-written code. Always listening to music,
       especially while coding.

OPTIONS
       --hire
              Open the hiring channel. Implies --coffee.

       --collaborate
              Start a side-project. May involve unreasonable amounts
              of dotfile bikeshedding.

       --coffee
              Required for all other operations.

EXIT STATUS
       0      everything is fine
       1      caffeine deficient
       42     answer found

SEE ALSO
       whoami(1), contact(1), now(1)

AUTHOR
       Marcel Leismann <mail[at]marcelleismann.de>

marcelleismann                    2026-04                            MARCEL(1)

$ cat contact.txt