Dylan Castillo

Live Components with Django and htmx

Using Django and htmx to render components through server-sent events.

2023: Personal Snapshot

An annual review of 2023. I took a look at what went well in 2023 and what I should change for 2024.

Fine-tuning Won't Add New Knowledge To Your Model

Learn why you should not fine-tune a model to add new knowledge to it, and what's the right approach for that.

Clustering Documents with OpenAI, LangChain, and HDBSCAN

This article will teach you how to cluster text data with LLMs using cutting-edge tools.

Create a Code Interpreter Chatbot with Pyodide, LangChain, and OpenAI

Learn how to build your own code interpreter chatbot using Pyodide, LangChain, and OpenAI.

Semantic Search with Elasticsearch, OpenAI, and LangChain

In this tutorial, I'll walk you through building a semantic search service using Elasticsearch, OpenAI, LangChain, and FastAPI.

Semantic Search with OpenSearch, Cohere, and FastAPI

In this tutorial, I'll you'll learn how to build a semantic search service using OpenSearch, Cohere, and FastAPI. You'll create an app that lets users search through news articles to find the ones that are most relevant to their query.

Build an AI Search Engine Using FastAPI, Qdrant, and ChatGPT

In this tutorial, you'll learn how to use FastAPI, Qdrant, Sentence Transformers, and ChatGPT to create an AI search engine.

Tips for Standing Out on LinkedIn

Learn how to use LinkedIn to get more and higher quality job opportunities.

How to Securely Deploy a FastAPI app with NGINX and Gunicorn

In this tutorial, you'll learn how to use NGINX, and Gunicorn+Uvicorn to deploy a FastAPI app, and generate a free SSL certificate for it.

My Experience at Entrepreneur First

This is a personal reflection on my time at Entrepreneur First. I'll explain what it is and how it works, as well as what I liked and didn't like about it.

PyScript 101

PyScript is a framework that lets users create Python apps in the browser. This tutorial will teach you the basics to get you started with it.

How to Use OpenSearch in Python

This tutorial covers the basics of using OpenSearch in Python. You'll learn how to set up a local development cluster, create an index, and store and search your data.

Text Classification Using Python and Scikit-learn

This tutorial will show you how to quickly build a text classification model using Python and Scikit-learn.

How to Use Elasticsearch in Python

This tutorial will teach you the basics of using Elasticsearch in Python. You'll learn how to set up an Elasticsearch cluster in your machine, to create an index, add data to that index, and search your data.

Entrepreneurship as a Risk Management Strategy

Table of Contents * The Plan * What's Next? Entrepreneurship, contrary to popular belief, is a great risk management strategy. Thoughtful entrepreneurs take on similar risks as employees while getting a chance to win a much larger pot. Also, it's more fun! If you've ever read

2021: Personal Snapshot

An annual review of 2021. I took a look at what went well in 2021 and what I should change for 2022.

How to Use GitHub Deploy Keys

Github deploy keys make it easy to deploy your app's code to a server. In this article, you'll learn how to create, configure, and use them.

How to Plot with Python: 8 Popular Graphs Made with pandas, matplotlib, seaborn, and plotly.express

In this tutorial, you'll learn how to make some of the most popular types of charts with four data visualization libraries: pandas, matplotlib, seaborn, and plotly.express.

How to Cluster Documents Using Word2Vec and K-means

Learn how to cluster documents using Word2Vec. In this tutorial, you'll train a Word2Vec model, generate word embeddings, and use K-means to create groups of news articles.

Clean and Tokenize Text With Python

The first step in a Machine Learning project is cleaning the data. In this article, you'll find 20 code snippets to clean and tokenize text data using Python.

How to Make a Twitter Bot With Python

Bots are becoming increasingly common on Twitter. Learn what options you have to make one. Use Python and an AWS Lambda Function to develop your own Twitter bot for free.

How To Come Up With Interesting Data Science Projects

Stop using the Titanic and MNIST datasets. Learn a simple approach to come up with interesting side projects.

4 Ways To Improve Your Graphs Using Plotly

Making high-quality data visualizations is a critical skill for Data Scientists. Learn how to get better at it using Plotly's python library.

Use Google Sheets, S3, and Python to Build a Website Quickly

We will set up a Python script that reads data from Google Sheets, generates a static site using a predefined template, and deploys it to an S3 bucket.

Fast & Asynchronous In Python: Accelerate Your Requests Using asyncio

Speedup your Python code by learning how to make concurrent requests to an API using asyncio and aiohttp.

Mind-reading Algorithms: An Introduction to Recommender Systems

How do Netflix, Amazon, and Google recommend content to users? Understand the What, Why, and How of Recommenders through stories and examples.