# Blog Posts — Jonathan Deiss

All posts, newest first. Append `.md` to any post URL for its raw markdown.

## Build Your Own Validator
- URL: https://jdeiss.com/posts/validators
- Markdown: https://jdeiss.com/posts/validators.md
- Date: 2025-07-27
- Tags: typescript, programming

Understand and build a zod-like validator

## Discriminated Unions
- URL: https://jdeiss.com/posts/discriminated-unions
- Markdown: https://jdeiss.com/posts/discriminated-unions.md
- Date: 2025-07-25
- Tags: typescript, programming

A brief tutorial on Typescript discriminated unions

## Senior Thesis
- URL: https://jdeiss.com/posts/senior-thesis
- Markdown: https://jdeiss.com/posts/senior-thesis.md
- Date: 2024-03-29
- Tags: schoolwork, thesis

A thesis in support of the right to repair I wrote in my senior year