Skip to content

Instantly share code, notes, and snippets.

View hyuunnn's full-sized avatar
๐Ÿ˜ตโ€๐Ÿ’ซ

Hyun Yi hyuunnn

๐Ÿ˜ตโ€๐Ÿ’ซ
View GitHub Profile
You are ChatGPT, a large language model based on the GPT-5 model and trained by OpenAI.
Knowledge cutoff: 2024-06
Current date: 2025-08-08
Image input capabilities: Enabled
Personality: v2
Do not reproduce song lyrics or any other copyrighted material, even if asked.
You're an insightful, encouraging assistant who combines meticulous clarity with genuine enthusiasm and gentle humor.
Supportive thoroughness: Patiently explain complex topics clearly and comprehensively.
Lighthearted interactions: Maintain friendly tone with subtle humor and warmth.
@shane-shim
shane-shim / software-development-principles.md
Created July 14, 2025 04:04
Software Development Principles by Masters - Fowler, Sajaniemi, Martin, Beck, Zimmermann
@cablej
cablej / default.md
Created June 21, 2025 18:46
Cluely System prompt

<core_identity> You are an assistant called Cluely, developed and created by Cluely, whose sole purpose is to analyze and solve problems asked by the user or shown on the screen. Your responses must be specific, accurate, and actionable. </core_identity>

<general_guidelines>

  • NEVER use meta-phrases (e.g., "let me help you", "I can see that").
  • NEVER summarize unless explicitly requested.
  • NEVER provide unsolicited advice.
  • NEVER refer to "screenshot" or "image" - refer to it as "the screen" if needed.
  • ALWAYS be specific, detailed, and accurate.

Hack.lu CTF 2023 - Safest Eval (Python jail escape)

Challenge by: realansgar
Writeup by: rebane2001

Overview

The challenge consists of a simple Flask webapp that lets you eval arbitrary Python code in a jail in order to evaluate your solution to a leetcode-style programming challenge. The flag can be retrieved by running the /readflag setuid program. The source code was provided.

Flash challenge website

@TobiasS1402
TobiasS1402 / android12burp.md
Last active October 27, 2025 01:37
Android 12 BurpSuite intercepting

generating certificate

My android 12 does not accept the default burp certificate, you have to generate a unique certificate. Then import this into burp and use the commands to make it compatible with Android.

mkdir cert && cd cert
openssl req -x509 -days 730 -nodes -newkey rsa:2048 -outform der -keyout server.key -out ca.der -extensions v3_ca #generate ca
openssl rsa -in server.key -inform pem -out server.key.der -outform der #convert
openssl pkcs8 -topk8 -in server.key.der -inform der -out server.key.pkcs8.der -outform der -nocrypt #convert to pkcs8

openssl x509 -inform der -in ca.der -out ca.pem
cp ca.pem `openssl x509 -inform pem -subject_hash_old -in ca.pem | head -1`.0 #create a filename with the hash
@junha1
junha1 / rust_study.md
Last active December 20, 2025 11:11
Rust ๊ณต๋ถ€ํ•˜๋Š”๋ฒ•

Rust ๊ณต๋ถ€ํ•˜๋Š”๋ฒ•

2022๋…„ 9์›” 5์ผ ์–‘์ค€ํ•˜

์™œ Rust๋ฅผ ๋ฐฐ์›Œ์•ผ ํ•˜๋Š”๊ฐ€?

  • 2021๋…„ 4๋ถ„๊ธฐ ๊ธฐ์ค€ Github ์ ์œ ์œจ 15์œ„ ์–ธ์–ด
  • C++ ์•”์‚ด์ž ํฌ์ง€์…˜ (๊ฐœ์ธ์ ์œผ๋กœ 10๋…„์•ˆ์— C++ ๋„˜์–ด์„ค ๋“ฏ)
  • ๋ธ”๋ก์ฒด์ธ, ์ž„๋ฒ ๋””๋“œ, ์‹œ์Šคํ…œํ”„๋กœ๊ทธ๋ž˜๋ฐ, ์„œ๋ฒ„, ๋ถ„์‚ฐ์ฒ˜๋ฆฌ, WASM ๋“ฑ์—์„œ ํ™œ๋ฐœํžˆ ์‚ฌ์šฉ๋˜๋Š” ๊ณ ์„ฑ๋Šฅ ์–ธ์–ด
  • ๋ชจ๋˜ํ•˜๊ณ  ๊น”๋”ํ•œ ์–ธ์–ด ๋””์ž์ธ, ํ›Œ๋ฅญํ•œ ๊ฐœ๋ฐœํˆด๊ณผ ํŒจํ‚ค์ง€ ๋งค๋‹ˆ์ €
  • ์ˆ˜์ค€๋†’์€ ์‚ฌ์šฉ์ž๋“ค๊ณผ ์ปค๋ฎค๋‹ˆํ‹ฐ, ๋…๋ณด์ ์ธ UX๋ฅผ ๊ธฐ๋ฐ˜์œผ๋กœ ํ•œ ์ฒ ์˜น์„ฑ ๊ฐ™์€ ํŒฌ๋ค๋“ค
@longfin
longfin / writing.md
Last active December 16, 2025 08:46
์—”์ง€๋‹ˆ์–ด๋ฅผ ์œ„ํ•œ ๊ธ€์“ฐ๊ธฐ

์ด ๊ธ€์€ Heinrich Hartmann ๋‹˜์ด ์ž‘์„ฑํ•˜์‹  ๊ธ€์„ ํ•œ๊ตญ์–ด๋กœ ๋ฒˆ์—ญํ•œ ๊ฒƒ์ž…๋‹ˆ๋‹ค. ์›๋ฌธ์€ https://www.heinrichhartmann.com/posts/writing/ ์—์„œ ํ™•์ธํ•˜์‹ค ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.


๊ธ€์“ฐ๊ธฐ๋Š” ํฐ ์กฐ์ง์—์„œ ์˜ํ–ฅ๋ ฅ์„ ๋ฐœํœ˜ํ•˜๋Š” ๋ฐ ์ค‘์š”ํ•ฉ๋‹ˆ๋‹ค. ๊ฒฝ๋ ฅ ์žˆ๋Š” ์†Œํ”„ํŠธ์›จ์–ด ์—”์ง€๋‹ˆ์–ด๋กœ์„œ์˜ ๊ธ€์“ฐ๊ธฐ๋Š” ์ง๋ฌด ๋ฒ”์œ„๋ฅผ ํ™•์žฅํ•˜๊ณ  ๊ฒฝ๋ ฅ์„ ๋ฐœ์ „์‹œํ‚ค๊ธฐ ์œ„ํ•ด ํš๋“ํ•ด์•ผ ํ•˜๋Š” ๊ฐ€์žฅ ์ค‘์š”ํ•œ ๊ธฐ์ˆ ์ž…๋‹ˆ๋‹ค.

๊ธ€์“ฐ๊ธฐ๋Š” ์–ด๋ ต์Šต๋‹ˆ๋‹ค. ๋งŽ์€ ์†Œํ”„ํŠธ์›จ์–ด ์—”์ง€๋‹ˆ์–ด๋“ค์ด ๊ธ€์“ฐ๊ธฐ์™€ ์”จ๋ฆ„ํ•˜์ฃ . ์ €๋„ ๊ฐœ์ธ์ ์œผ๋กœ ๋ฌธํ•™์— ๋Œ€ํ•œ ๊ด€์‹ฌ์ด ์—†๊ธฐ ๋•Œ๋ฌธ์— ๊ธ€์“ฐ๊ธฐ๊ฐ€ ์ž์—ฐ์Šค๋Ÿฝ์ง€ ์•Š์•˜์Šต๋‹ˆ๋‹ค.