A7reus' Blog here lies my scrambled brain https://a7reus.github.io/ 2026-09-02T12:47:14.047Z custom SSG Anindya Saha Cordelia: Learning Networking by Rebuilding LocalSend https://a7reus.github.io/posts/cordelia-learning-networking-by-rebuilding-localsend/ 2026-09-02T00:00:00.000Z 2026-09-02T00:00:00.000Z https://github.com/A7reus/Cordelia Preface When I started building this project, I had never written a line of Go and my networking knowledge was limited (and still is, but not as much). This post is ... Binding OJ Accounts with Vjudge: A Tutorial https://a7reus.github.io/posts/binding-OJ-accounts-with-vjudge/ 2026-08-21T00:00:00.000Z 2026-08-21T00:00:00.000Z Prologue If you use Virtual Judge (VJudge) to solve problems across multiple platforms, binding your Online Judge (OJ) accounts is essential. It lets VJudge submit code directly on your behalf and... Decluttering Dotfiles with Git Bare Repository https://a7reus.github.io/posts/decluttering-dotfiles-with-git-bare-repository/ 2026-05-25T00:00:00.000Z 2026-05-25T00:00:00.000Z For Linux enthusiasts, system administrators, and digital artisans, config files, also known as dotfiles, are the DNA of our computing environments. They represent hours, sometimes years, of... Setting Up a Home Media Server with Jellyfin https://a7reus.github.io/posts/setting-up-a-home-media-server-with-jellyfin/ 2026-03-27T00:00:00.000Z 2026-03-27T00:00:00.000Z Overview Setting up a media server means centralizing and streaming your own media without relying on internet connectivity or streaming service subscriptions. Jellyfin is my personal favorite... Building Linux from Scratch: A Monologue https://a7reus.github.io/posts/building-linux-from-scratch-a-monologue/ 2026-03-20T00:00:00.000Z 2026-03-20T00:00:00.000Z Background The first time I installed and started using linux as a daily driver was back in 2020, when I was still a college freshman. No one can look back at those days of the COVID-19 pandemic with ... Wielding the Double-Edged Sword Called Social Media https://a7reus.github.io/posts/wielding-the-double-edged-sword-called-social-media/ 2026-01-12T00:00:00.000Z 2026-01-12T00:00:00.000Z Why? Quoting from this post, > [...] with 259 million new user identities starting to use social media since this time last year. > > That equates to annualised growth of 4.87 percent, at an average... JU Bootcamp CTF — Writeup https://a7reus.github.io/posts/ju-bootcamp-ctf-writeup/ 2025-11-04T00:00:00.000Z 2025-11-04T00:00:00.000Z Section 1: Basics Problem 1: Digital Image Metadata Analysis > While investigating digital evidence, you come across a series of JPEG image files. Although they appear ordinary at first glance, you... CyberHero - TryHackMe Writeup https://a7reus.github.io/posts/cyberhero-tryhackme-writeup/ 2025-11-03T00:00:00.000Z 2025-11-03T00:00:00.000Z Link to the TryHackMe room. Performing a Scan The first thing you can do is performing an nmap scan on the ip. From the output, there seems to be an service running on port . Let's visit the site... 初めまして。 https://a7reus.github.io/posts/hajimemashite/ 2025-11-01T00:00:00.000Z 2025-11-01T00:00:00.000Z ２０２５年１１月１日、１７時３０分 初めまして。 名前は「オニンド」です。現在、大学２年生で、専攻はコンピュータサイエンスです。 趣味のついて話したら、多すぎるくらいあります。例えば、プログラミング、アニメ、漫画、小説、チェス、どれも好きです。 そして、今、日本語の勉強に集中してします。正直にちょっと難しいです。でも、面白い部分もあります。 今日はこれで。 良いー日お！