As it turns out good code is made way before writing a line of code. This might be the most important lesson of my apprenticeship as a software developer.The skills learned then were especially useful when studying computer science and enabled me to complete some projects too. An incomplete list of things I learned throughout apprenticeship, professional work and university- Java, Kotlin, JavaScript, PHP, Bash- how to database using SQL and Neo4j- git is your friend- how to plan how a bunch of people can code different parts of the same thing without creating a mess- a lot of diagrams which can help achieving the previous point- unit tests- build Web apps- build Android apps- why machine learning is funRecently I made an invoice extraction module, using and extending a proprietary framework, for Planet AI GmbH.