_Index on Springbit

Penetration Testing report - Wonderland

Fri, 17 Apr 2026 10:14:00 +0300

Some notes before we start

For this walkthrough, I tried to showcase my findings as I would in a penetration testing report. This is my first time writing one 😃, so some aspects may not be perfect.

Also, note that I’ll use TARGET_IP instead of the actual IP because the value is not constant - it changes on every room refresh.

Also also, make sure you are connected to the VPN! You can run ifconfig | grep 192 and you should see two IPs, one assigned by your router and one for the VPN.

Advent of Code 2025 - recap

Thu, 08 Jan 2026 13:53:08 +0200

This year marks the first time I’ve been so thorough with my documentation & problem solving. I’ve tried Advent of Code before in 2024 but I’ve given up after about day three 🤔 with no history whatsoever.

I’ve managed to fully complete 8 challenges and partially complete 2 challenges, but what I’m most proud of is how much I’ve learned & applied, from topics such as DFS with memoization to P and NP problems. I’ve never expected problems to be so complicated, and most of the topics were stuff I’ve met with only in theoretical form. Having to actually implement a working prototype is a step forward to a better understanding.

Deep dive - achievement unlocked!

Fri, 24 Oct 2025 11:31:42 +0300

TLDR

I’ve gone and got my PADI Open Water Diver license & photographed some aquatic life. You will find my experience with the overall process, along with my personal tries at identification for what I’ve photographed, down below.

The why?

During the summer of 2025, I wanted to do more besides simple snorkling. I’ve been swimming and surface diving since I was little, so I figured why not try the real deal? - meaning scuba diving. After some research, I’ve understood that simply scuba diving is not something that you just do - you need a license and proper training beforehand.

Making Docker an underpaid teaching assistant

Thu, 10 Jul 2025 19:04:03 +0300

TLDR

I held a Python laboratory for my past faculty.

Homework assigments were copy-pasted or AI-resolved, and I did not want to look at the same code ten times in a row. So, using Python, Docker and the Discord API, I came up with my own automated solution, which waiting for a student’s message (in private), evaluated the submitted solution and returned a score. Basically every online coding platform, but made with bugs & error by me.