Starting MS-DOS... ▄

A:\>DIR SRC ▄
 Volume in drive A is FU
 Volume Serial Number is 1982-8086
 Directory of A:\SRC

 🟥 NETWORKING
  ⚙️ gaio - High-performance, minimalist async-io (proactor) networking for Golang.
  💬 smux - A stream multiplexing library for Golang with minimal memory usage.
  👥 kcp-go - A crypto-secure Reliable-UDP library for Golang with FEC support.
  🌟 libkcp - A lightweight C++ client library for communicating with kcp-go.
  ⚡ kcptun - A quantum-safe, secure tunnel built on QPP, KCP, FEC, and multiplexing.
  🦗 grasshopper - A secure, chained UDP relayer based on gaio.
  🤝 bdls - Initial PoC implementation of the BDLS BFT Consensus algorithm, now integrated into hyperledger.
  🐕 lossyconn - A lossy connection simulator.
  😄 tcpraw - Send packets directly over TCP.

 🟦 CRYPTOGRAPHY❤️
  🐚 qsh - A quantum-resistant remote shell built on QPP (encryption), HPPK (authentication), and HMAC (authenticity).
  ✳ qpp - Quantum Permutation Pad implementation in Golang. $\sigma = (1\ 2\ 3)(4\ 5)...(128\ 255)$ (PQC)
  🐇 hppk - A homomorphic polynomial public key KEM and digital signature (DS) scheme. (PQC)
  🪂 dppk - A deterministic polynomial public key KEM algorithm over a prime Galois Field GF(p). (PQC)
  🛡️ safebox - A retro key management TUI tool for blockchain and more; one key to derive them all.

 🟩 OTHER
  📫 gonet - A feature-rich game server skeleton in Golang.
  🈳️ budda - ☸️ My personal collection of Buddhist materials.📿
  📐 algebra - My learning notes on $\mathnormal{algebra}$.
  ⚛️ algorithms - $Algorithms$ and $Data$ structures in C++.
  🤖 navmesh - Navigation mesh implementation in Golang.
  ♾️ kidsmath - A tool for generating math puzzles for kids.

                0 File(s)     0 bytes
                16 Dir(s)    1024 bytes free

A:\>DIR/W EDU ▄
 [.]    [..]    [UESTC.BEng]    [HKPolyU.MSc]    [🍵Donate]    [Books]

                2 Degree(s)    32 bytes

A:\>TYPE MAIL.TXT ▄
; IMAP [@] LIVE [DOT] COM