Flo Woelki

@UC18qytfIhR9cNEjUcgGLl3A - 27.2K subscribers

Creating content about software engineering with Paper and "Drawings".

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errors.AsType in Go 1.26 makes Error Handling better!

errors.AsType in Go 1.26 makes Error Handling better! Flo Woelki

6.7K views - 4 days ago

Go 1.26: context.Cause Finally Returns the Signal

Go 1.26: context.Cause Finally Returns the Signal Flo Woelki

4.3K views - 1 month ago

Go 1.26 Quietly Improved fmt.Errorf - Here's How

Go 1.26 Quietly Improved fmt.Errorf - Here's How Flo Woelki

5.5K views - 1 month ago

Go 1.26's Small But Clever New Function Change!

Go 1.26's Small But Clever New Function Change! Flo Woelki

18.2K views - 1 month ago

Adding the AI: Snake Game in Go and Ebiten (Part 3)!

Adding the AI: Snake Game in Go and Ebiten (Part 3)! Flo Woelki

1.4K views - 1 month ago

Beware of this Struct Performance Bottleneck in Go!

Beware of this Struct Performance Bottleneck in Go! Flo Woelki

11.8K views - 1 month ago

Building Map & Filter from Scratch in Go

Building Map & Filter from Scratch in Go Flo Woelki

4K views - 3 months ago

Why 0 bytes matter: Using Empty Structs in Go

Why 0 bytes matter: Using Empty Structs in Go Flo Woelki

7.8K views - 3 months ago

Adding flags to our custom Echo implementation in C

Adding flags to our custom Echo implementation in C Flo Woelki

781 views - 5 months ago

Integration Tests for the Graceful Shutdown in Go

Integration Tests for the Graceful Shutdown in Go Flo Woelki

2.9K views - 5 months ago

Graceful Shutdown in Go: Key Patterns you need to know!

Graceful Shutdown in Go: Key Patterns you need to know! Flo Woelki

8.1K views - 5 months ago

Creating an Axum Web Server in Rust is easy!

Creating an Axum Web Server in Rust is easy! Flo Woelki

17K views - 6 months ago

Lazy evaluation in Rust: the power of Closures!

Lazy evaluation in Rust: the power of Closures! Flo Woelki

2.5K views - 6 months ago

How to build Async/Await in Go (like in JavaScript/C#)

How to build Async/Await in Go (like in JavaScript/C#) Flo Woelki

7.4K views - 7 months ago

Create a basic echo command in C using system calls!

Create a basic echo command in C using system calls! Flo Woelki

22.8K views - 7 months ago

The new Trace Flight Recorder in Go 1.25 is awesome!

The new Trace Flight Recorder in Go 1.25 is awesome! Flo Woelki

10.1K views - 7 months ago

Stop returning many values: Use Result Structs in Go!

Stop returning many values: Use Result Structs in Go! Flo Woelki

10.6K views - 8 months ago

Makefiles and Go: Simplify and automate your workflow

Makefiles and Go: Simplify and automate your workflow Flo Woelki

10.5K views - 8 months ago

What's going on with this const in C++?

What's going on with this const in C++? Flo Woelki

1.2K views - 9 months ago

Go 1.25 is not flashy.. it's just faster and smarter!

Go 1.25 is not flashy.. it's just faster and smarter! Flo Woelki

27.8K views - 9 months ago

Vet command in Go: the tool you didn’t know you use

Vet command in Go: the tool you didn’t know you use Flo Woelki

2.9K views - 9 months ago

What are Build Tags and how can we leverage them in Go?

What are Build Tags and how can we leverage them in Go? Flo Woelki

3.3K views - 10 months ago

Exploring the new tool directive in Golang 1.24

Exploring the new tool directive in Golang 1.24 Flo Woelki

4.5K views - 10 months ago

Let's Refactor: Snake Game in Go and Ebiten (Part 2)!

Let's Refactor: Snake Game in Go and Ebiten (Part 2)! Flo Woelki

2.6K views - 10 months ago

Open-Source AI-Powered SQL tool: Chat2DB with Claude 4

Open-Source AI-Powered SQL tool: Chat2DB with Claude 4 Flo Woelki

1.6K views - 10 months ago

Building a TCP Echo Server in Rust is "easy"!

Building a TCP Echo Server in Rust is "easy"! Flo Woelki

3.9K views - 11 months ago

Go's full output power: fmt, ANSI Colors & (s)logging

Go's full output power: fmt, ANSI Colors & (s)logging Flo Woelki

5.4K views - 11 months ago

Building a TCP Echo Server in Go: Networking Basics

Building a TCP Echo Server in Go: Networking Basics Flo Woelki

6.4K views - 11 months ago

My Zed + Vim Editor Setup: Everything you need to know!

My Zed + Vim Editor Setup: Everything you need to know! Flo Woelki

42.4K views - 1 year ago

"Explicitly" verify an interface implementation in Go

"Explicitly" verify an interface implementation in Go Flo Woelki

5.4K views - 1 year ago

Everything about basic File Handling in Golang

Everything about basic File Handling in Golang Flo Woelki

8K views - 1 year ago

The new synctest package in Golang 1.24 is fantastic!

The new synctest package in Golang 1.24 is fantastic! Flo Woelki

5.7K views - 1 year ago

From Strong to Weak: Weak Pointers in Golang 1.24

From Strong to Weak: Weak Pointers in Golang 1.24 Flo Woelki

13K views - 1 year ago

Go 1.24: Generic Type Aliases are finally here!

Go 1.24: Generic Type Aliases are finally here! Flo Woelki

12.6K views - 1 year ago

New Go 1.24 os.Root type: Stop Path Traversal Attacks

New Go 1.24 os.Root type: Stop Path Traversal Attacks Flo Woelki

7K views - 1 year ago

Adding concurrency to our CLI with Rust and Futures!

Adding concurrency to our CLI with Rust and Futures! Flo Woelki

1.9K views - 1 year ago

Golang Concurrency - All the Basics you have to know!

Golang Concurrency - All the Basics you have to know! Flo Woelki

53.4K views - 1 year ago

Building a Snake Game in Go and Ebiten (Part 1)!

Building a Snake Game in Go and Ebiten (Part 1)! Flo Woelki

10.4K views - 1 year ago

The Must pattern in Golang clearly explained!

The Must pattern in Golang clearly explained! Flo Woelki

20.3K views - 1 year ago

Using slices in Rust is pretty powerful!

Using slices in Rust is pretty powerful! Flo Woelki

3.3K views - 1 year ago

Say Goodbye to Magic Numbers: Using "Enums" in Golang!

Say Goodbye to Magic Numbers: Using "Enums" in Golang! Flo Woelki

15.5K views - 1 year ago

Use this to check if your Go project is vulnerable!

Use this to check if your Go project is vulnerable! Flo Woelki

3.5K views - 1 year ago

Rust's Twin Strings: Understanding &str and String

Rust's Twin Strings: Understanding &str and String Flo Woelki

4.6K views - 1 year ago

Memory Profiling is so easy with Go's Runtime package!

Memory Profiling is so easy with Go's Runtime package! Flo Woelki

11.9K views - 1 year ago

Characters do not exist in Go: Everything about runes!

Characters do not exist in Go: Everything about runes! Flo Woelki

6.6K views - 1 year ago

Control your errors in Golang with this module!

Control your errors in Golang with this module! Flo Woelki

6.1K views - 1 year ago

Beyond the Clock: All about Timers & Tickers in Golang!

Beyond the Clock: All about Timers & Tickers in Golang! Flo Woelki

4.9K views - 1 year ago

Go 1.23: Custom Iterators Explained - Best feature?!

Go 1.23: Custom Iterators Explained - Best feature?! Flo Woelki

9.8K views - 1 year ago

Boosting the performance by being unique in Go 1.23!

Boosting the performance by being unique in Go 1.23! Flo Woelki

8.9K views - 1 year ago

You have to know these two Golang 1.23 changes!

You have to know these two Golang 1.23 changes! Flo Woelki

6.4K views - 1 year ago

Building a CLI with Rust and the GitHub API is so easy!

Building a CLI with Rust and the GitHub API is so easy! Flo Woelki

3.5K views - 1 year ago

Type Assertions in Go: the only guide you need!

Type Assertions in Go: the only guide you need! Flo Woelki

10.1K views - 1 year ago

A hands-on guide for proper Unit Testing in Go!

A hands-on guide for proper Unit Testing in Go! Flo Woelki

29.2K views - 1 year ago

If you are a beginner in Go, avoid this Slice pitfall!

If you are a beginner in Go, avoid this Slice pitfall! Flo Woelki

9.2K views - 1 year ago

Creating custom struct tags in Golang is awesome!

Creating custom struct tags in Golang is awesome! Flo Woelki

31.3K views - 1 year ago

Level Up Your Golang: 5 Concepts You Need to know

Level Up Your Golang: 5 Concepts You Need to know Flo Woelki

44.3K views - 1 year ago

Why I switched from VSCode to Zed.

Why I switched from VSCode to Zed. Flo Woelki

47.6K views - 1 year ago

The Spread Operator (or Variadic Functions) in Golang

The Spread Operator (or Variadic Functions) in Golang Flo Woelki

5.6K views - 1 year ago

DIY Golang Web Server: No Dependencies Needed!

DIY Golang Web Server: No Dependencies Needed! Flo Woelki

51.3K views - 1 year ago

Golang: The Last Interface Explanation You'll Ever Need

Golang: The Last Interface Explanation You'll Ever Need Flo Woelki

93.6K views - 1 year ago