I am Konstantinos Giamalis, Chief Product Officer (CPO) at efood.gr, the leading online food delivery service in Greece (🇬🇷).
I started this blog as a library to share lessons learned, express viewpoints on important subjects, and share intriguing content from others in a frequent basis.
Feel free to read my posts, subscribe, or simply drop a hello on LinkedIn.
![[Guide] Product hiring framework](/_next/image?url=https%3A%2F%2Fassets.super.so%2F99cb30f3-9f77-4c1d-ac55-11edd83a4bb1%2Fimages%2Fabca1516-6b89-4b47-b8d6-99b28b82a7d1.jpg&w=3840&q=80)
A Beginner's guide on how to use Tag Manager in GA4
A Beginner's guide on how to use Tag Manager in GA4
Data
[Step by step] How to build a chatbot using openAI, Langchain & Streamlit.
![[Step by step] How to build a chatbot using openAI, Langchain & Streamlit.](https://images.spr.so/cdn-cgi/imagedelivery/j42No7y-dcokJuNgXeA0ig/0fcae3cc-f633-43d2-baec-b7b5ea808727/OSASuBX1SGu4kb3ozvne_IMG_1088/w=3840,quality=80,fit=scale-down)
[Step by step] How to build a chatbot using openAI, Langchain & Streamlit.
AICode
![[Review] Langchain with Python bootcamp](/_next/image?url=https%3A%2F%2Fassets.super.so%2F99cb30f3-9f77-4c1d-ac55-11edd83a4bb1%2Fimages%2Fe3f77d47-cc74-49da-afd4-3be964aee271.jpg&w=3840&q=80)
![[Guide] Anomaly detection algorithm](/_next/image?url=https%3A%2F%2Fassets.super.so%2F99cb30f3-9f77-4c1d-ac55-11edd83a4bb1%2Fimages%2F3d241c2a-7c34-483b-994b-e2193bb0a6f2.jpg&w=3840&q=80)
[Review] LangChain for LLM Application Development
![[Review]](/_next/image?url=https%3A%2F%2Fassets.super.so%2F99cb30f3-9f77-4c1d-ac55-11edd83a4bb1%2Fimages%2F45a9a39e-2cd0-4102-a927-db084771d53a.jpg&w=3840&q=80)
[Review] LangChain for LLM Application Development
AI
![[Review] AI worskhop for Senior PMs](/_next/image?url=https%3A%2F%2Fassets.super.so%2F99cb30f3-9f77-4c1d-ac55-11edd83a4bb1%2Fimages%2F16d6397d-ea5d-4f71-9e09-c0153892046d.jpg&w=3840&q=80)
[Guide] Two decision making frameworks (+books)
![[Guide] Two decision making frameworks (+books)](/_next/image?url=https%3A%2F%2Fassets.super.so%2F99cb30f3-9f77-4c1d-ac55-11edd83a4bb1%2Fimages%2Fbc02c0ad-c517-4034-a895-d764ff90573d.jpg&w=3840&q=80)
[Guide] Two decision making frameworks (+books)
DecisionMakingPrioritization
![[Guide] PM Growth assessment example](/_next/image?url=https%3A%2F%2Fassets.super.so%2F99cb30f3-9f77-4c1d-ac55-11edd83a4bb1%2Fimages%2F3b5fe93c-649c-4717-8ea6-54ce3e4e6ea0.jpg&w=3840&q=80)
![[Guide]](/_next/image?url=https%3A%2F%2Fassets.super.so%2F99cb30f3-9f77-4c1d-ac55-11edd83a4bb1%2Fimages%2F471b169c-2a41-4772-b9d6-fbb28431f1f7.jpg&w=3840&q=80)
![[Essay] A strange A/B test](/_next/image?url=https%3A%2F%2Fassets.super.so%2F99cb30f3-9f77-4c1d-ac55-11edd83a4bb1%2Fimages%2Fdb76fc1d-08c5-4587-86d3-6fc56f388b77.jpg&w=3840&q=80)