[Advanced Rust] 2.7. API Design Principles of Flexibility Pt.3 - Borrowed vs Owned, Cow Type, and Fallible and Blocking Destruc…
Full title: [Advanced Rust] 2.7. API Design Principles of Flexibility Pt.3 - Borrowed vs Owned, Cow Type, and Fallible and Blocking Destructors with S
rust
dev.to
Aug 07, 2026
Learning Go as a Ruby Developer — Part 4: What can we do with a single "for"
So loops in ruby has several ways to implement
10.times do |i|
puts i
end
while condition
# ...
end
users.each do |user|
# ...
end
until fini
go
dev.to
Aug 07, 2026
From an idea to an open-source Go framework: where RetUI is today.
A few months ago, RetUI was just an idea.
I wanted a different way to build terminal applications in Go—something that could provide a modern, compone
go
dev.to
Aug 07, 2026
Why I Stopped Waiting on Ruby LSP and Built My Own Fuzzy Symbol Search for VS Code
If you've worked in a mid-to-large Rails codebase in VS Code, you've probably run into this: you want to jump to a method, you hit Ctrl/Cmd+T, you typ
ruby
dev.to
Aug 07, 2026
How to Test AI Features in Flutter [Full Handbook]
You've spent two weeks building an AI assistant. The streaming chat looks beautiful, the system prompt is tight, and safety filters are configured. Yo
general
freecodecamp
Aug 07, 2026
Glucose math looks trivial until you ship it: five rules from a production CGM app
We build Sugar Sense, a CGM companion app that connects to
FreeStyle Libre, Dexcom and Nightscout and shows glucose
on phones, watches, a browser tool
ruby
dev.to
Aug 07, 2026
You Don't Need Sidekiq Pro for Batch Jobs, Rate Limiting, or Cron Here's a Free Drop-In
If you've built anything non-trivial with Sidekiq, you've probably hit the wall where the feature you actually need batch job callbacks, rate limiting
ruby
dev.to
Aug 07, 2026
How I made Go feel interpreted with Go plugins
Interactive programming environments have become an important part of modern development. REPLs, notebooks, and live coding tools all share the same i
go
dev.to
Aug 07, 2026
The Shopify Goldmine: How to Build Your First App in Rails
If you know Ruby on Rails, you are already sitting on a goldmine.
Shopify is one of the biggest e-commerce platforms in the world, and here is a sec
ruby
dev.to
Aug 07, 2026
Your Go table test passes, but not for the reason you think
This is the single most reproduced bug in Go test suites, and it is green the whole time it is wrong.
func TestValidate(t *testing.T) {
cases :
go
dev.to
Aug 07, 2026
🎲 Charkeeper: One Frontend for a Multi-System RPG Character Manager
Character sheets look simple until a game starts calculating abilities, equipment, health, spells, levels, and rules. Evrone developer Anton Bogdano
ruby
dev.to
Aug 07, 2026
Quiz: How to Use Type Hints for Multiple Return Types in Python
Test your understanding of type hints for multiple return types in Python. Practice unions, tuples, callables, generators, and type aliases.
python
realpython
Aug 07, 2026
The Real Python Podcast – Episode #306: Programmatically Developing LLM Prompts With DSPy
How can you move from manually writing prompts for an LLM application toward defining them programmatically? This week on the show, Brett Kennedy retu
python
realpython
Aug 07, 2026
They scoped the customer and forgot the customer's ledger — a High-severity cross-tenant BOLA in Open Food Network
TL;DR
What: POST /api/v1/customer_account_transaction in Open Food Network authorized against the class, not the record. It took customer
ruby
dev.to
Aug 07, 2026
How to Harden GitHub Actions Permissions with Least Privilege by Default
When a workflow has more permissions than it needs, a simple build job can become a path to repository changes, token misuse, or a wider blast radius
general
freecodecamp
Aug 06, 2026
How to Build a Browser-Based PDF Color Inverter Tool Using JavaScript
Reading PDF documents for long periods can become tiring, especially when the document contains bright backgrounds or when you're working in a low-lig
javascript
freecodecamp
Aug 06, 2026
CSRF from Scratch: Browser Mechanics, Attacks, and Spring Security Implementation [Full Handbook]
If you've ever built a web application or configured Spring Security, you've almost certainly encountered Cross-Site Request Forgery (CSRF). In my pre
java
freecodecamp
Aug 06, 2026
Why 2D Trapped-Ion Quantum Computers Could Be Easier to Scale Than 1D Architectures
I still remember the first time I ran a Bell-state circuit on a quantum simulator. The code was only a few lines long, but it felt magical. Two qubits
general
freecodecamp
Aug 06, 2026
How an ECG on a Wrist Wearable Works and How It Compares to a Clinical Test
For decades, recording an electrocardiogram (ECG) meant visiting a hospital or clinic. The doctors would place multiple electrodes on your chest and l
general
freecodecamp
Aug 06, 2026
How to Customize an LLM for AI Agents using SFT and QLoRA
In this tutorial, I’ll show you how to fine-tune a large language model for use in AI agents using supervised fine-tuning with QLoRA. This lets us cus
general
freecodecamp
Aug 06, 2026