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Focusing
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Focusing
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Achievement: YOLOAchievement: Pull SharkAchievement: Arctic Code Vault Contributor

Achievements

Achievement: YOLOAchievement: Pull SharkAchievement: Arctic Code Vault Contributor

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sebastianbartmann/README.md

Sebastian Bartmann

Analytics & data engineer. Building agentic systems.

10 years writing software → 5 years freelancing → now deep in marketing tech infrastructure and agentic workflows.

My focus: making the data layer smarter. Tracking pipelines, BigQuery models, server-side tagging — and increasingly, agents that operate on top of all of it.

Current Projects

Project What it does
thirdpartycheck.com Scans any website and maps every third-party connection it makes — trackers, CDNs, pixels, everything
botfriendly.shop Exploring what websites need to look like when AI agents do the browsing
datalayer.solutions Playground for server-side GTM, tracking architecture experiments

Stack I actually use

Python JS BigQuery Docker Nginx Google Tag Manager sGTM LLM APIs Codex Claude Code

Elsewhere

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  1. VPS-Server-Side-Tag-Manager-Config-with-Nginx VPS-Server-Side-Tag-Manager-Config-with-Nginx Public

    Docker Compose and Nginx Configurations to run a Server Side Tagging GTM Container on your private Server (VPS)

    1