Learn
Local Voice Assistant with Ollama
Kacper Walczak · 06-03-2026
Build your own local voice assistant powered by Ollama.
Latest post
Local Voice Assistant with Ollama
Kacper Walczak · 06-03-2026
Build your own local voice assistant powered by Ollama.
Latest post
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Kacper Walczak 06-03-2026
Local Voice Assistant with Ollama
Build your own local voice assistant powered by Ollama.
Kacper Walczak 06-03-2026
AI YouTube Thumbnail Generator
Generate YouTube thumbnails with FastAPI, Pillow and Ollama.
DDD
Kacper Walczak 04-09-2024
Domain Driven Design (DDD)
Lets learn how to utilize DDD approach with examples.
Kacper Walczak 03-09-2024
"One to rule them all" - service rebuild story
Service rebuild + NoSQL migration of millions of documents on Google Cloud.
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valid_at: Date...- CQRS
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- MVC
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Local Voice Assistant with Ollama
Build your own local voice assistant powered by Ollama.
AI YouTube Thumbnail Generator
Generate YouTube thumbnails with FastAPI, Pillow and Ollama.
Graph DB usage comparison
Compare Neo4j and Tigergraph databases, which is easier to work with, etc..
DDD
Domain Driven Design (DDD)
Lets learn how to utilize DDD approach with examples.
"One to rule them all" - service rebuild story
Service rebuild + NoSQL migration of millions of documents on Google Cloud.
Bi-Temporal Events
Compare Martin Fowler's vision with reality or so-called 'Arkency way'.
⌛ timestamp
📊 data
EventStore for Event Sourcing
Dive into Event Sourcing internals, learn how to build Event Store.
MockClock Unit Testing
Mock time to check wheter product can be returned in tests within 30 days threshold.
<ul> <li>Data1</li> <li>Data2</li> </ul>Scrape Pharmacies list
How to scrape list of Pharmacies from browser and save to CSV file with Node, Puppeteer and Cheerio.
⌛ now?
... tik, tok
Perfect Timer for the Web
Learn how to create perfect 10min, etc. timer for your apps in typescript.
Docker
Node + Container
ExpressJS & MongoDB with Docker
How to contenerize ExpressJS and MongoDB app.
PostgreSQL
Integration Testing
Test PostgreSQL with Testcontainers
How to PostgreSQL integration tests with Testcontainers.
.sub()
{ "id": "IAJSIDJAS", "title": "Resize image with Python"}RxJS Subject in Python
Implementing the Subject and Observer pattern in Python.
QUAK Hero Slider
Check out how new QUAK Hero Slider is done with React.
Datastructure
Date
Date in Javascript
Learn how to deal with dates in JS.
Light/dark
Check out how to light/dark your website or app.
SCRAPE
DATA
DATA
DATA
Scrap Youtube with AI
Scrap data from Youtube platform with an AI help.
Deploy
CPanel
Deploy static HTML to CPanel
CD- Deploy static HTML to the shared hosting CPanel.
Architecture
CQRS
Lets learn how to use CQRS in your project and when.
Ways to build
Backend Architectures
Lets learn how to use different kinds of architecture.
- Case
# given, when# then →assert trueAPI Unit Testing
Learn how to Unit test your API
Simulator
CPU
Lets build a CPU simulator
Lets build a CPU simulator.
SendEmailThatPostIsPublished(
MakePostFromDraftService(draft_repo=PostDraftRepository(), post_repo=PostRepository())
).publish(post_draft_id="put_real_post_draft_id_here")
# decorator# patternFlask API with services
Learn how, why and when to use services with Flask and easy to test architecture.
Request
{
"title": "Resize image with Python",
"content": "Learn how to resize image with Python",
"author_id": "user_OAIJSDOIJ"
"created_at": "2021-10-28T00:00:00.000Z"
}Flask JSON CRUD API
Get to know how to easily build json API with Flask and easy to test architecture.
Arcade Map Generator
Generate random maps for arcade games with React.
➡️ main.py
Engine
Deploy Flask to AppEngine
Learn how to deploy Flask to AppEngine on Google Cloud Platform.
· vipCode?
Discriminated Unions
Learn how to deal with optional properties in typescript.
.set(key, value)
.get(key)
Maps in JS
Learn how to use Map in JS, interesting usage.
class App
DI in TypeScript
Learn how to implement Dependency Injection in TS.
Resize img with Python
Get to know how to use PIL library for Python img resize solution.
Build http server
Build with me Express like library but with Bun. Learn how to build http server with Bun.
Running a basic server
Compute Engine on Google Cloud Platform is easy to start with.
Store
· usersList
· selectedUserID
State management
Learn how to manage state in Angular.
DTO
Repository
Domain
DRD Frontend
SPA architecture for frontend applications.