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June 1, 2023

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February 16, 2026

Eduardo Mereles, Full-Stack Developer at Kaizen Softworks

Eduardo Mereles

Responsibility police

Full-Stack Developer

Practical Tips for Mastering a New Framework

Published on

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February 23, 2026

Last updated on

·

February 16, 2026

Time to read

·

12

Eduardo Mereles, Full-Stack Developer at Kaizen Softworks

Eduardo Mereles

Full-Stack Developer

We’ve all been there: we want to learn about a new framework or technology so we go to its official webpage and carry out the online tutorial. Unfortunately, these tutorials generally aim to cover a basic first approach to the tool, but not enough when we want to use them for something more complex such as creating a product for a production environment. The aim of this blog then is to provide some tips on how to approach learning a new framework or technology.

I remember when I used to have more free time at work and decided to learn how to use React. I carried out the online tutorials from the official website, which I found quite interesting but I was not even close to being able to use it in a complex project. For example: one of the tutorials only covers React components and hooks, but not its characteristics which are highly important in a webpage, such as:

  • Authorization and authentication handling using OAuth.
  • Error handling using external services.
  • Application’s state handling using Redux or Mobx.
  • APIs calls using Fetch or Axios.
  • Using external libraries, as in some technologies this may be complex. Such is the case of Expo. Docker deployment or any other solution.

You may be thinking: that’s what the advanced guide on the website is for, as it even tackles even more complex topics. While I agree with that, those guides fail to give answers to the above mentioned, which I believe are quite basic and should be present in any production solution.

That is why, I believe the best way to learn a new technology is by trying to simulate a project including all the characteristics a production solution should have. I know it’s not easy to come up with a good idea for a project and then develop it so thoroughly. Instead, I suggest not to bother so much about the functionality of the project in itself.

If we want to implement authentication and authorization using OAuth, it isn’t really important whether we try it in a social network system or in an account management software, what’s really important is that certain routes access, websites or resources are restricted according to the characteristics we consider important. So don’t waste time trying to think of an appealing idea, just roll up your sleeves and get down to work.

In the same line of thought, during my last stay on the bench (which is what we say in Kaizen when someone has not been assigned to any client yet) I decided to learn how to use NestJS to implement a solution using microservices. While I was acquainted with that topic as I had seen it in University, I never had the chance to put it into practice. The first thing I did was to resort to something very good we have here at Kaizen: our workmates!

In Kaizen developers work in teams which are assigned to different clients. Different teams often use different technologies and architectures. Developers at Kaizen are always willing to help their peers, even if they are not part of the same team, so I decided to ask one of my colleagues working with microservices for help.

This colleague told me about the technology they used to implement microservices in his project and some tips on what to bear in mind when using it. Based on that I came up with a list of characteristics which are necessary for a solution of this kind:

  • Service mesh, to facilitate communication among microservices, state handling, etc.
  • Database connection to maintain changes in the system.
  • You can have several instances of deployment.
  • Since there is a service mesh, setting up a debugger is not always so simple.
  • Track what’s going on in the system and how good its performance is.
  • Use Swagger to be able to try the services exposed by the API.
  • Use OAuth for authentication and authorization.

As you can see, there are many things to bear in mind. This is why it is highly advisable to count with a working plan to help you work out the different steps and to set short term goals to feel motivated. This is how I planned it:

  1. API Rest with NestJS.
  2. Create microservices using @NestJS/microservices.
  3. Docker deployment.
  4. Service mesh using Dapr and connecting the microservices.
  5. Docker-compose deployment.
  6. Use a state manager from Dapr to establish a database connection.
  7. Docker image adjust to support deployment in Kubernetes.
  8. Debugger setup.
  9. Swagger configuration.
  10. State tracking using zipkin.
  11. Error tracking using sentry.
  12. OAuth using auth0.

As you can see, I made some changes based on my own experience and interests. For example, I made the database connection using Dapr as connecting databases from Node.js isn’t very different from doing it using NestJS. Moreover, I split the deployment in two as first I wanted to learn docker, then docker-compose and finally Kubernetes.

I may not have the same experience I have using other frameworks and implementing a solution based on what I learnt may not be so fast and efficient. However, I consider that I have learnt how to use NestJS, Dapr, Docker, Kubernetes satisfactorily. I could also create a Github repository where I have everything ready if I have the opportunity to put it all into practice in a real situation with a client. This repository can also be used to pass on knowledge to future colleagues.

Conclusion

In conclusion, learning a new framework is not only about following some basic tutorials, but more like diving into simulating projects which involve more complex characteristics and challenges. By simulating a project with characteristics necessary for a production solution, we can gain practical knowledge and face common obstacles present in the real world.

In addition, seeking peers and experts' support aids our learning and offers us a broader perspective. Designing a working plan and setting up short-term achievements can help us feel motivated and to obtain non-stop progress. Finally, this approach allows us to develop hard skills and to create a knowledge repository that we can share with others in the future.

We’ve all been there: we want to learn about a new framework or technology so we go to its official webpage and carry out the online tutorial. Unfortunately, these tutorials generally aim to cover a basic first approach to the tool, but not enough when we want to use them for something more complex such as creating a product for a production environment. The aim of this blog then is to provide some tips on how to approach learning a new framework or technology.

I remember when I used to have more free time at work and decided to learn how to use React. I carried out the online tutorials from the official website, which I found quite interesting but I was not even close to being able to use it in a complex project. For example: one of the tutorials only covers React components and hooks, but not its characteristics which are highly important in a webpage, such as:

  • Authorization and authentication handling using OAuth.
  • Error handling using external services.
  • Application’s state handling using Redux or Mobx.
  • APIs calls using Fetch or Axios.
  • Using external libraries, as in some technologies this may be complex. Such is the case of Expo. Docker deployment or any other solution.

You may be thinking: that’s what the advanced guide on the website is for, as it even tackles even more complex topics. While I agree with that, those guides fail to give answers to the above mentioned, which I believe are quite basic and should be present in any production solution.

That is why, I believe the best way to learn a new technology is by trying to simulate a project including all the characteristics a production solution should have. I know it’s not easy to come up with a good idea for a project and then develop it so thoroughly. Instead, I suggest not to bother so much about the functionality of the project in itself.

If we want to implement authentication and authorization using OAuth, it isn’t really important whether we try it in a social network system or in an account management software, what’s really important is that certain routes access, websites or resources are restricted according to the characteristics we consider important. So don’t waste time trying to think of an appealing idea, just roll up your sleeves and get down to work.

In the same line of thought, during my last stay on the bench (which is what we say in Kaizen when someone has not been assigned to any client yet) I decided to learn how to use NestJS to implement a solution using microservices. While I was acquainted with that topic as I had seen it in University, I never had the chance to put it into practice. The first thing I did was to resort to something very good we have here at Kaizen: our workmates!

In Kaizen developers work in teams which are assigned to different clients. Different teams often use different technologies and architectures. Developers at Kaizen are always willing to help their peers, even if they are not part of the same team, so I decided to ask one of my colleagues working with microservices for help.

This colleague told me about the technology they used to implement microservices in his project and some tips on what to bear in mind when using it. Based on that I came up with a list of characteristics which are necessary for a solution of this kind:

  • Service mesh, to facilitate communication among microservices, state handling, etc.
  • Database connection to maintain changes in the system.
  • You can have several instances of deployment.
  • Since there is a service mesh, setting up a debugger is not always so simple.
  • Track what’s going on in the system and how good its performance is.
  • Use Swagger to be able to try the services exposed by the API.
  • Use OAuth for authentication and authorization.

As you can see, there are many things to bear in mind. This is why it is highly advisable to count with a working plan to help you work out the different steps and to set short term goals to feel motivated. This is how I planned it:

  1. API Rest with NestJS.
  2. Create microservices using @NestJS/microservices.
  3. Docker deployment.
  4. Service mesh using Dapr and connecting the microservices.
  5. Docker-compose deployment.
  6. Use a state manager from Dapr to establish a database connection.
  7. Docker image adjust to support deployment in Kubernetes.
  8. Debugger setup.
  9. Swagger configuration.
  10. State tracking using zipkin.
  11. Error tracking using sentry.
  12. OAuth using auth0.

As you can see, I made some changes based on my own experience and interests. For example, I made the database connection using Dapr as connecting databases from Node.js isn’t very different from doing it using NestJS. Moreover, I split the deployment in two as first I wanted to learn docker, then docker-compose and finally Kubernetes.

I may not have the same experience I have using other frameworks and implementing a solution based on what I learnt may not be so fast and efficient. However, I consider that I have learnt how to use NestJS, Dapr, Docker, Kubernetes satisfactorily. I could also create a Github repository where I have everything ready if I have the opportunity to put it all into practice in a real situation with a client. This repository can also be used to pass on knowledge to future colleagues.

Conclusion

In conclusion, learning a new framework is not only about following some basic tutorials, but more like diving into simulating projects which involve more complex characteristics and challenges. By simulating a project with characteristics necessary for a production solution, we can gain practical knowledge and face common obstacles present in the real world.

In addition, seeking peers and experts' support aids our learning and offers us a broader perspective. Designing a working plan and setting up short-term achievements can help us feel motivated and to obtain non-stop progress. Finally, this approach allows us to develop hard skills and to create a knowledge repository that we can share with others in the future.

Related Articles

·

May 15, 2026

Can AI Safely Apply Changes Across Microservices?

Learn how AI can apply changes across microservices when service ownership, message contracts, DTOs, and architectural context are clearly defined.

12 read time

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Applying changes across microservices is difficult because business logic is distributed across multiple services, each with its own data, contracts, and responsibilities.

In our experiment at Kaizen Softworks, we tested whether an AI system could safely apply coordinated changes across a microservices architecture using only minimal input.

Short answer: Yes, but only when the AI has enough architectural context.

Why are coordinated changes in microservices so hard?

In distributed systems, a single business change rarely affects just one service.

It often requires:

  • Updating multiple microservices
  • Modifying message contracts
  • Keeping DTOs (Data Transfer Objects) consistent
  • Respecting domain boundaries defined by Domain-Driven Design (DDD)

Key entities in this system:

  • Microservice: An independently deployable service responsible for a specific domain
  • Aggregate (DDD): A cluster of domain objects treated as a single unit
  • DTO (Data Transfer Object): A structured format used to transfer data between services
  • Message/Event: A communication mechanism between services

The complexity is not in the code, it’s in the relationships between components.

The experiment: Can AI reason across services with minimal input?

We designed a controlled experiment to test whether an AI model could apply system-wide changes with limited information.

Input given to the AI:

  • Message definitions (events between services)
  • DTOs (data contracts)

Tasks the AI had to perform:

  1. Identify affected aggregates
  2. Determine service ownership
  3. Apply coordinated changes across services
  4. Maintain consistency in messages and DTOs

In other words, the AI had to behave like a software architect, not just a code generator.

What was the biggest obstacle?

The biggest challenge was not technical, it was contextual.

Before and after diagram showing how ambiguous microservice names prevent AI from understanding service ownership, while aggregate-to-service mapping helps AI apply safe coordinated changes.

Problem: unclear service naming

Instead of descriptive names like:

  • order-service
  • billing-service

Our services were named:

  • john
  • sally
  • roger

This removed any semantic clues about responsibility.

Result: The AI could not infer which service owned which domain logic.

The missing piece: aggregate ownership mapping

To solve this, we introduced a simple but powerful structure:

Aggregate → Service mapping

  • Order → john
  • Shipment → sally
  • Invoice → roger

This created a clear relationship between domain concepts and system components.

Once ownership was explicit, the architecture became understandable.

How we used AI to generate architectural context

Instead of building this mapping manually, we used AI to analyze the codebase and extract:

  • Where each aggregate was defined
  • Which microservice implemented it
  • The relationship between domain and infrastructure

The result was a machine-readable architecture map.

In practice, we used AI to generate the context that AI itself needed.

Results: Can AI safely apply distributed changes?

With the architecture map in place, the AI was able to:

  • Trace message flows across services
  • Identify affected aggregates
  • Locate the correct microservices
  • Apply coordinated updates
  • Maintain consistency between DTOs and messages

While not perfect, the system worked reliably as a proof of concept.

What is the real limitation of AI in microservices?

The main limitation of AI is not code generation, it’s architectural understanding.

Without knowing:

  • Which components exist
  • How they relate
  • Who owns what

AI cannot safely modify a distributed system.

AI performance depends more on context quality than model capability.

When can AI safely modify microservices?

AI works well when:

  • Aggregate ownership is clearly defined
  • Message contracts are explicit
  • Architecture is structured and consistent

AI struggles when:

  • Naming is ambiguous
  • Relationships are implicit
  • Context is incomplete

Simple rule: If the architecture is clear, AI can reason. If not, it guesses.

Final thoughts

This experiment revealed something important:

AI doesn’t fail because it can’t write code.
It fails because it can’t see the system.

As teams move toward AI-assisted development, the focus will likely shift from:

Writing better code to Designing better systems for machines to understand

At Kaizen Softworks, we see this as a foundational shift.

Because when AI can understand architecture, it doesn’t just generate code, it helps evolve systems.

·

Mar 13, 2026

How We Make Decisions Without Managers

We don’t have traditional managers. This is how we make decisions and keep things moving.

12 read time

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There's a myth that in flat organizations, everyone decides on everything.

That's not how it works. At least not at Kaizen.

When people hear "no managers," they often picture one of two extremes: either total chaos where nobody is accountable, or endless meetings where 80 people vote on which coffee to buy. The reality is neither.

Not everyone decides on everything. Not everyone votes. What we do have is a clear set of decision-making methods that we choose based on context.

It depends on who's affected and how deep the impact goes

Before choosing how to decide, we ask ourselves a few questions:

  • Who is affected? A decision that only impacts one team doesn't need the whole company involved. A decision that affects everyone's daily work does.
  • How deep is the impact? Changing the office furniture is wide but shallow. Changing the salary model is deep and lasting.
  • Is it reversible? If we can easily undo it, we can move fast and just inform. If it's hard to reverse, we slow down and include more people.
  • How urgent is it? And here we're careful to distinguish real urgency from anxiety, the pressure to decide quickly because someone already has "the answer" in mind.

These dimensions help us pick the right method. Not every decision deserves the same process.

Our decision-making toolkit

Over the years, we've landed on a few methods that we use depending on the situation:

1. Role-based decisions

Some decisions belong to a specific role. If someone owns a responsibility, say, office logistics or hiring for a team,  they decide within that domain. No committee needed. The key is that roles are transparent: everyone knows who owns what, and the scope of each role's authority is clear.

2. Advice Process

When a decision doesn't clearly belong to one role, or when it crosses boundaries, we use the advice process. Here's how it works:

  1. Someone takes the initiative. They identify the problem and own the process.
  2. They gather input from people who are affected and people with expertise.
  3. They seek advice, real conversations, not rubber-stamping.
  4. They make the decision and communicate it, including what advice they incorporated and what they didn't (and why).

The decision-maker is not a committee. It's one person (or a small group) who takes responsibility. But they don't decide in isolation, they bring in the perspectives that matter.

We sometimes call this "Team Advice" when a working group forms around an issue that doesn't naturally fall into anyone's area, and "Area Advice" when a team opens up a topic that exceeds their own scope.

3. Consent (not consensus)

Consent is not "everyone agrees." Consent means "no one has a strong enough objection to block this." We do use a poll, but not to count votes — we use a 1-to-5 scale to measure the level of agreement and surface objections, not to let the majority rule.

We use it in two flavors:

  • High-participation consent: For decisions with deep, company-wide impact. This is our most expensive and slowest method, which is exactly why we reserve it for high-impact decisions that affect many people. The Board sets the boundaries, for example, when we moved offices, they defined the monthly budget. Then a working group produced proposals, collected feedback, evolved them, and the whole company expressed their position for the final decision. Silence is not approval; we explicitly ask people to weigh in, even if it's just "I have no objection."
  • Lightweight consent: For decisions that are broad but not deep. Participation is optional, anyone who's interested can jump in. We share the proposal, open a window for objections, and if nobody opposes, we move forward. This gives us speed without sacrificing transparency. If nobody engages, that's a signal too, maybe the proposal doesn't add enough value, or we're using the wrong channel.

4. Inform, don't fake-consult

Not everything needs participation. When a decision has already been made through a legitimate process, the right move is to inform, not to fake-consult. One of the fastest ways to kill self-management is to ask for feedback and then ignore it. If you're not going to change course based on input, don't ask for it, just be transparent about the decision and the reasons behind it.

What we explicitly avoid

  • Decision by Voting. In a company context, majority rule creates losers. And losers become detractors, often generating more resistance than an autocratic decision would have. Instead of voting, we prefer to evolve a proposal through feedback until it's "good enough for now," and then introduce a review point to adjust later. If voting happens at all, it's the cherry on top, not the main course.
  • The "surprise" approach. Working behind closed doors and then unveiling a finished decision is a recipe for frustration. Adults don't need surprises. Adults need to feel like they're part of the process. The complaints that follow a surprise aren't about the decision itself, they're about not being included.

Why we work this way

We didn't adopt these methods because they're trendy. We adopted them because they solve real problems:

  • Better decisions. When you include affected people, you get information you wouldn't have had otherwise. Ideas emerge that no single person would have come up with alone.
  • Less resistance. A person who feels heard is far less likely to resist a decision, even one they wouldn't have made themselves.
  • Faster execution. It sounds counterintuitive, but participative decisions often execute faster because people already understand and support them. The time you "save" by deciding alone, you spend later managing pushback.
  • Distributed authority. When people can make decisions within their domain without escalating everything to a founder, the organization scales. The bottleneck disappears.
  • Resilience. If a shared decision fails, the group adjusts together. If a top-down decision fails, the blame falls on one person and the chances of proactive correction drop.

The real principle behind all of this

Transparency is the foundation. Every method we use, from role-based decisions to high-participation consent, works because information flows openly. People know what's being decided, who's deciding it, and how they can participate.

Horizontal doesn't mean structureless. It means fewer hierarchical levels, clearer roles, and intentional decision-making processes that match the weight of each decision.

Not everyone decides on everything. But everyone knows how things get decided.