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Do not be a hero – 3 pros and some tradeoffs
Do not be a hero. Why ? . Ever seen that one guy doing midnight fixes, hot releases after hours and then gets praised in front of everyone making You look bad ? When features are delivered on time and on target the team is considered heroes. We all love rewards and recognition but heroism might become … Heroes give up work / life balance. As the ancient wisdom teaches us „no good deed goes unpunished”. Whenever there is a new crisis or a target to achieve is set, yesterday’s heroes are quickly forgotten. Long hours eventually might lead to burnout, anxiety and/or even depression. What “Don’t Be a Hero”…
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5 why methodology
5 why methodology is one of my favorites. Simple, easy to remember and always work. If You are not at Your root cause just ask… yet again… Why ! Remember when you burned that pork chop in the kitchen last time and instead of blaming the recipe, you dug deeper? „Why did it burn? Fire too high. Why? Didn’t check the stove. Why? Rushed after back to the pc…” Boom! You found the reason. Do not ever leav e a frying pan unattended or start using a timer. That’s 5 whys methodology in action, a powerhouse technique from Toyota smashing problems and stripping the mystery Basics to remember 5 Why…
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When to use Value Objects in database
Question when to use value objects in database is usually discussed during storing a new set of data. Usage of value objects should be considered while modeling abstractions that are constant / immutable and do not require unique identity. Examples can be: geospatial data, estate addresses or any categories that belong to an entity. VO also encapsulates validation logic and business rules. Helps to avoid raw strings or magic numbers. When to use it and its benefits How to map a value object in db Scenario Mapping Benefit Embed Columns in parent table (Street, City in Address) Fast reads, no joins Complex nesting JSONB/PostgreSQL or owned entities Flexible schema, validation…
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Law of Demeter in programming
Law of Demeter in programming You could in short paraphrase as „Don’t talk to strangers!” or „Keep Your hands in your pockets”. A class needing data from a deep chain of objects like – user.getAddress().getStreet().getNumber().It is visible very often in OOP, less in functional approachess ! The Law of Demeter states that method only knows its closest dependencies: itself, passed parameters, created objects, and own fields. Should not be used with dot chains ( they were so fancy when we started Java 8 back in the day). What to Remember? Where Law of Demeter comes from ? Why Demeter ? The Law of Demeter in progamming takes its name from…
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How to use Context7 mcp server
What is Context7? Context7 is an open-source MCP server that provides real-time, version-specific documentation and code examples for over 50,000 libraries. It integrates seamlessly with AI tools like GitHub Copilot, Claude, or custom LLM agents. Why use it? How to use Context7 mcp server ? You can play around on the main page of the project or simply use a curl to fetch the data You wish so look up : context7.com/api/v2/docs/code/vuejs/pinia?topic=log&tokens=666 How to Configure Context7 How to use Context7 is really simple, just add a proper config entry and the plugin You use should pick it up instantly. Maybe reload the app if in need. 1. Install the Context7…
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Tokenization and embedding of song lyrics „We will, we will…”
Tokenization and embedding of song lyrics „We will, we will…” i know you know how it ends. but have You wondered what would an LLM say ? Let us find out. I want to ask the Clause Sonnet 4.5 about the embeddings, tokenizations and probability of figuring out the lyrics for „We will, we will…” prompt 🙂 Can you show me the tokenization, embeddings, emtadata and probabilities for „We will, we will …” Tokenization Any kind of machine learning uses numbers in the back stage. The text is split into tokens, each mapped to an ID ( example values ) : Token ID Token Text Type Position Length 1234 We…
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What is a token in AI ? Prompt examples
What is a token in AI ? – A piece of text, usually a word that we send to the LLM. The same goes for when we get a response ( usually number of words = number of tokens, roughly). How to use it ? Since we pay for it , rather cautiously. We want to send the minimum and get the maximum out of every request. Pretty much the basics of economics. Below are couple of prompts i used to analyze my tokens usage. Something are obsiously hallucinations but on the other hand we get a prety decent breakdown of all the data i did send for that coding…
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Burner email
Burner email is number one technique to keep You sane of Your private data… beeing private. This is not about just loosing Your account, it is about loosing, breaching, leaking Your accoun, Your email, profile data You provied and password to the general public. Naughty hackers included. Burner mail address is a smart privacy and security strategy (checkout OWASP ) . It is a temporary, disposable address, and and account You make based on that email, that keeps your true, real life data separated from anything else. Crucially, you should use something You can always loose.. better yet.. Your worst enemy can get their hands on… Burner email services Name…
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How to check if Your email and password was leaked
Why You need a strong passwords and check if it was breached How to check if Your email and password was leaked ? Just check the security blogs or institutions like https://databreach.com/. Google the title of this blog post. Fix your breached credentials or You will be sorry ! Passwords are Your first line of defense. Multiple factor authentication (MFA) like sms, email verification or authentication application should also be something You do! How to make a good password ? Many different ways to make it happend. I would recommend to consider : This is a simple algorith You can use to remember all of those passwords and every one…
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How to delete code – the story of interface
How to Delete Code: The Interface Story How to delete code, safely of course, is usually a major problem. Difficult and You always second guess every decision because You don’t know what You don’t know. It is not just hitting the „delete” button. You need to make a smart decision and second guess your solution. How to remove unnecessary code with a focus ? Refactor the code, use interfaces and then test it twice remembering about user experience. TL; DR 😉 Define one interface. Create two implementations – legacy, modern and any other. Unify! Use it in already existing services or create such services by refactoring code. Switch between them…
