What Are Crypto Perpetual Futures (And How I Made $8,400 Trading Them)
Alexa Velin
January 18, 2026
Root access to modern finance.
Root access to modern finance.
Welcome to our daily blog, your daily dose of inspiration, information about cryptocurrency and financing and everything in-between. Shell & Coin is proudly sponsored by Royal Pheromones.
Ondo Finance tokenizes US Treasuries as yield-bearing crypto tokens. Here’s how USDY, OUSG, and the ONDO token work in 2026.
Stacks (STX) brings smart contracts and DeFi to Bitcoin without changing it. Learn how Proof of Transfer, sBTC, and Stacking let you earn real BTC rewards.
What is Sei Network (SEI) crypto? Learn how this L1 blockchain delivers 12,500 TPS, sub-400ms finality, and DeFi-native speed using Twin-Turbo consensus.
A 529 plan is a tax-advantaged education savings account with tax-free growth. Learn how it works, what it covers, and the 2026 rules that changed everything.
A SEP IRA lets self-employed workers contribute up to $72,000 tax-deferred in 2026. Here’s how it works, who qualifies, and how to open one today.
A certificate of deposit (CD) pays a guaranteed fixed rate for locking up your money. Learn how CDs work, current rates, types, penalties, and when to use one.
Learn how to configure Nginx as a reverse proxy on Linux. Covers proxy_pass, headers, SSL termination, WebSocket support, and security hardening with examples.
Step-by-step guide to installing Python on Linux. Covers apt, pyenv, venv, and the PEP 668 externally-managed error on Ubuntu, Debian, and RHEL.
Install Redis on Linux the right way — step-by-step commands for Ubuntu, Debian, and RHEL, plus security hardening and kernel tuning every sysadmin needs.
Learn how to install PostgreSQL on Linux step by step. Covers Ubuntu, Debian, and RHEL with first-login setup, user creation, and remote access config.
Install Node.js on Linux the right way — nvm, apt, or NodeSource. Step-by-step commands for Ubuntu, Debian, RHEL, and Arch. Pick the method that fits your workflow.
Learn how to install K3s on Linux in minutes — single-node and multi-node setup, kubectl access, and deploying your first workload on lightweight Kubernetes.
Learn how to schedule cron jobs in Linux with this complete guide. Includes syntax examples, common mistakes to avoid, troubleshooting tips, and real-world automation patterns.
I’m gonna tell you something that’ll piss off every technical analysis guru on YouTube: Fibonacci retracement is astrology for traders. It “works” because enough idiots believe in it that it becomes a self-fulfilling prophecy. There’s zero scientific evidence that markets give a shit about mathematical ratios discovered by some Italian
Learn how to use modprobe to load and manage Linux kernel modules. Complete guide with practical examples, common errors, and best practices for system administrators.
Learn how to use rsync in Linux to sync files locally and remotely over SSH. Covers options, examples, automation with cron, and common mistakes to avoid.
Learn the crucial difference between systemctl restart and reload commands. Discover when to use each for zero-downtime updates and proper Linux service management.
Trading earnings with options is like playing Russian roulette with five bullets in the chamber while blindfolded. I know because I’ve pulled the trigger about 200 times, and while I’m still alive, my account has died multiple deaths. I’ve made $15,000 on a single Netflix earnings play and lost $12,000
Learn how to use the watch command in Linux to monitor commands in real time. Real-world examples, essential options, and practical tips from 10+ years of sysadmin work.
Learn how to use Git on Linux from scratch. Install, configure, commit, branch, and push code. Practical sysadmin workflows with real command examples.
Let me tell you about the time I spent $50,000 on AI trading bots thinking I’d found the cheat code to the market. Spoiler alert: I lost $35,000 and learned that most “AI trading bots” are about as intelligent as a Magic 8-Ball with a subscription fee. But I also
Learn how to create and manage Linux bash aliases to speed up your terminal. Practical examples for navigation, safety, system admin, and networking shortcuts.
Listen up, because I’m about to save you from making the same $47,000 mistake I made when I started trading forex. You know what I did my first week? Jumped straight into trading the Turkish Lira because some jackass on YouTube said it was “volatile and full of opportunity.” Volatile?
As a Linux system administrator or enthusiast, securing your remote connections should be at the top of your priority list. SSH (Secure Shell) is the backbone of remote administration for Linux systems, but an improperly configured SSH server can leave your system vulnerable to brute force attacks, unauthorized access, and
I’ve blown up accounts at seven different brokers. Not because I’m proud of it, but because I’m apparently a masochist who needs to test every platform personally before believing the reviews. Over the past six years, I’ve traded options on TD Ameritrade, E*TRADE, Robinhood, Tastyworks, Interactive Brokers, Webull, and Fidelity.
Learn how to check systemd service status in Linux using systemctl commands. Master troubleshooting failed services, monitoring, and managing system services effectively.
Learn what the FIRE movement is and how Financial Independence Retire Early works. Calculate your FIRE number, understand different FIRE types, and discover if retiring decades early is right for you.
Learn how to use strace command in Linux to trace system calls, debug processes, and troubleshoot performance issues. Complete guide with real-world examples.
Learn to use Btrfs on Linux — create subvolumes, take snapshots, enable zstd compression, and run scrubs. Practical commands for every Linux admin.
Learn how to use journalctl in Linux to troubleshoot problems and monitor services. Master filtering by time, service, and priority with real-world examples.
Bad Wolf Pheromone Cologne for Men isn’t just a product; it’s an experience. It’s for men who are ready to own their space, exude charisma, and embrace their full potential. Whether you’re making your presence felt in the boardroom or creating unforgettable moments in personal connections, Bad Wolf is the secret weapon that ensures you’ll be remembered.
Master the Linux cut command to extract fields, columns, and characters from files. Learn syntax, practical examples, common mistakes, and when to use cut vs awk.
Learn how to use nftables in Linux with real examples. Covers tables, chains, rules, and building a persistent server firewall from scratch.
Tested 6 Linux backup tools in 2026 — Restic, Borg, Kopia, Timeshift and more. Find the best Linux backup software for your homelab or server.
Learn how to use tmux in Linux for persistent sessions, split panes, and better terminal management. Step-by-step guide with real sysadmin examples and configuration tips.
Demystifying systemd-resolved: A Comprehensive Guide to Local DNS Resolution Hey there, fellow Linux enthusiasts! Alice here, ready to dive deep into another fascinating corner of the Linux world. Today, we’re tackling systemd-resolved, a system service that provides local DNS resolution. If you’ve ever wrestled with DNS configuration, especially in complex
Stellar (XLM) is the payments blockchain powering cross-border remittances, USDC, and the DTCC’s 2027 tokenized securities platform. Here’s how it works.
A spot Bitcoin ETF holds real BTC and trades on stock exchanges. Here’s how it works, what it costs, the top funds to know, and who should actually buy one.
Jupiter (JUP) is Solana’s dominant DEX aggregator with $1T+ in volume and 95% market share. Here’s how it works, what JUP does, and if it’s worth your attention.
Injective (INJ) is a Layer 1 blockchain built from scratch for DeFi finance. Learn how its MEV-resistant order book, burn tokenomics, and RWA markets work.
What is Shiba Inu (SHIB)? Learn how this Ethereum meme coin evolved into a DeFi ecosystem with Shibarium L2, ShibaSwap DEX, and a deflationary burn model.
Zero knowledge proofs let you verify truth without revealing data. Here’s how ZK tech powers Ethereum L2 scaling, DeFi privacy, and the future of crypto in 2026.
Set up MetaMask wallet in minutes. Learn how to install it, secure your seed phrase, add custom networks, and avoid the scams that steal from 500 users daily.
What is Hedera HBAR crypto? Learn how hashgraph consensus, the Governing Council, and enterprise use cases make HBAR different from every other blockchain.
Hot wallet vs cold wallet explained: the key differences, real security risks, and which crypto storage strategy makes sense for your holdings.
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