Stefan Alfbo

Software developer that is passionate about learning new technologies and solving complex problems. Always trying to be curious and open minded to improve my skills.

Sweden Joined on Sep 7, 2022

Education

KTH Royal Institute of Technology

Work

Software developer

Stefan Alfbo

Jun 8 '24

100 Days To Offload - completed

#challenge #100daystooffload #blog #writing

1 min read

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Stefan Alfbo

Jun 7 '24

Go and WebUI

#100daystooffload #go #webui #gui

3 min read

Stefan Alfbo

Jun 6 '24

ScoutSuite

#100daystooffload #tooling #security #cloud

2 min read

Stefan Alfbo

Jun 5 '24

AWS Summit Stockholm

#100daystooffload #aws #awssummit #event

1 min read

Stefan Alfbo

May 25 '24

Create plugins in Go

#100daystooffload #go #plugin #programming

3 min read

Stefan Alfbo

May 21 '24

Exploring the tool ./jq

#100daystooffload #jq #json #tooling

2 min read

Stefan Alfbo

May 20 '24

Genetic Algorithms with Go

#100daystooffload #geneticalgorithms #go #ai

5 min read

Stefan Alfbo

May 19 '24

Benchmark testing in Go

#100daystooffload #go #testing #benchmark

3 min read

Stefan Alfbo

May 16 '24

Implement PKCS#7 padding

#challenge #100daystooffload #cryptopals #security

3 min read

Stefan Alfbo

May 15 '24

Gatekeeper One - Level 13

#100daystooffload #ethernaut #solidity #ethereum

5 min read

Stefan Alfbo

May 14 '24

Detect AES in ECB mode

#challenge #100daystooffload #cryptopals #security

3 min read

Stefan Alfbo

May 13 '24

AES in ECB mode

#challenge #100daystooffload #cryptopals #aes

2 min read

Stefan Alfbo

May 12 '24

Break repeating-key XOR

#challenge #100daystooffload #cryptopals

6 min read

Stefan Alfbo

May 11 '24

LangChain Go

#100daystooffload #go #llm #langchain

2 min read

Stefan Alfbo

May 7 '24

Python JSON schema

#100daystooffload #json #django #python

4 min read

Stefan Alfbo

May 5 '24

OWASP Amass

#100daystooffload #tooling #security #osint

2 min read

Stefan Alfbo

May 2 '24

Implementing repeating-key XOR

#challenge #100daystooffload #cryptopals

2 min read

Stefan Alfbo

May 1 '24

The go vet command

#100daystooffload #go #tooling #vet

2 min read

Stefan Alfbo

May 1 '24

Detect single-character XOR

#challenge #100daystooffload #cryptopals

2 min read

Stefan Alfbo

Apr 30 '24

Single-byte XOR cipher

#challenge #100daystooffload #cryptopals

3 min read

Stefan Alfbo

Apr 29 '24

Constructors in Go?

#100daystooffload #go #beginners #programming

2 min read

Stefan Alfbo

Apr 29 '24

Fixed XOR

#challenge #100daystooffload #cryptopals #beginners

2 min read

Stefan Alfbo

Apr 28 '24

Convert hex to base64

#challenge #100daystooffload #cryptopals #crypto

2 min read

Stefan Alfbo

Apr 28 '24

the cryptopals crypto challenges

#challenge #100daystooffload #cryptography #beginners

1 min read

Stefan Alfbo

Apr 15 '24

Write tests for your type definitions

#100daystooffload #typescript #testing #typesafe

2 min read

Stefan Alfbo

Apr 7 '24

git stash

#100daystooffload #git #tooling #stash

2 min read

Stefan Alfbo

Mar 22 '24

Open API with Postman

#100daystooffload #postman #openapi #tooling

2 min read

Stefan Alfbo

Mar 21 '24

Example tests in Go

#100daystooffload #go #testing #programming

3 min read

Stefan Alfbo

Mar 19 '24

Live reloading in Go

#100daystooffload #go #air #reloading

2 min read

Stefan Alfbo

Mar 16 '24

wget - a non-interactive network retriever

#100daystooffload #wget #tooling #cli

2 min read

Stefan Alfbo

Mar 12 '24

Find code in open source projects

#100daystooffload #tooling #programming #productivity

1 min read

Stefan Alfbo

Mar 11 '24

Privacy - Level 12

#100daystooffload #ethernaut #solidity #ethereum

4 min read

Stefan Alfbo

Mar 10 '24

Mock /api/auth/me

#100daystooffload #playwright #testing #auth0

2 min read

Stefan Alfbo

Mar 9 '24

quick.Check in Go

#100daystooffload #go #testing #pbt

4 min read

Stefan Alfbo

Mar 4 '24

func init() {}

#100daystooffload #go #programming

2 min read

Stefan Alfbo

Mar 3 '24

Internal packages in Go

#100daystooffload #go #programming #cleancode

2 min read

Stefan Alfbo

Feb 26 '24

go test <package>

#100daystooffload #go #testing #programming

1 min read

Stefan Alfbo

Feb 25 '24

White box and Black box testing in Go

#100daystooffload #go #testing #programming

3 min read

Stefan Alfbo

Feb 24 '24

How to share a secret

#100daystooffload #cryptography #shamir #fsharp

6 min read

Stefan Alfbo

Feb 24 '24

The modulus operator in .NET

#dotnet #100daystooffload #csharp #fsharp

1 min read

Stefan Alfbo

Dec 28 '23

LWW Register

#100daystooffload #crdt #algorithms #csharp

8 min read

Stefan Alfbo

Dec 27 '23

Elevator - Level 11

#100daystooffload #ethernaut #soldity #ethereum

3 min read

Stefan Alfbo

Dec 26 '23

Foundry - chisel

#100daystooffload #foundry #chisel #solidity

2 min read

Stefan Alfbo

Dec 25 '23

Re-entrancy - Level 10

#100daystooffload #ethernaut #solidity #ethereum

4 min read

Stefan Alfbo

Dec 1 '23

Advent of Code 2023

#100daystooffload #adventofcode #puzzles #programming

1 min read

Stefan Alfbo

Nov 26 '23

Discriminated Unions

#100daystooffload #programming #types #datastructures

1 min read

Stefan Alfbo

Nov 13 '23

Playwright with GitHub Actions

#100daystooffload #playwright #githubactions #testing

2 min read

Stefan Alfbo

Nov 12 '23

LangChain for LLM Application Development

#100daystooffload #llm #langchain #openai

3 min read

Stefan Alfbo

Nov 5 '23

An overview of CRDTs

#100daystooffload #crdt #distributedsystems #algorithms

2 min read

Stefan Alfbo

Oct 28 '23

Django ORM with objects

#100daystooffload #django #orm #python

2 min read

Stefan Alfbo

Oct 24 '23

100 Days To Offload

#challenge #100daystooffload #blog #writing

1 min read

Stefan Alfbo

Oct 17 '23

OCaml, Python and protobuf

#100daystooffload #protobuf #ocaml #python

3 min read

Stefan Alfbo

Oct 15 '23

Introduction to Protocol Buffers

#100daystooffload #protobuf #serializing #beginners

3 min read

Stefan Alfbo

Oct 8 '23

Building Systems with the ChatGPT API

#100daystooffload #course #chatgpt #llm

3 min read

Stefan Alfbo

Oct 5 '23

MinIO as a local S3 service

#100daystooffload #minio #s3 #devcontainer

4 min read

Stefan Alfbo

Oct 1 '23

Conway's Game of Life in F#

#100daystooffload #fsharp #bolero #webassembly

6 min read

Stefan Alfbo

Sep 22 '23

Lovely Silk

#100daystooffload #silk #python #django

2 min read

Stefan Alfbo

Sep 19 '23

SEC-T - 0x0FOO

#100daystooffload #security #conference #hacking

1 min read

Stefan Alfbo

Sep 17 '23

Unit testing with OCaml

#100daystooffload #ounit2 #unittesting #ocaml

3 min read

Stefan Alfbo

Sep 11 '23

King - Level 09

#100daystooffload #ethernaut #solidity #ethereum

3 min read