Toolshedhttps://usetoolshed.comA growing library of browser tools and deep technical guides for IT professionals.Alpaca vs Kraken vs Coinbase: API access and paper/sandbox trading compared for EU usershttps://usetoolshed.com/alpaca-vs-kraken-vs-coinbase-euhttps://usetoolshed.com/alpaca-vs-kraken-vs-coinbase-euPicking a broker or exchange for an automated trading setup in the EU comes down toThu, 23 Jul 2026 00:00:00 GMT Backtesting vs paper trading vs live trading: what each stage actually proveshttps://usetoolshed.com/backtesting-vs-paper-trading-vs-live-tradinghttps://usetoolshed.com/backtesting-vs-paper-trading-vs-live-tradingThese three stages get treated as interchangeable validation steps — "I tested it" —Thu, 23 Jul 2026 00:00:00 GMT Why beating buy-and-hold is a much higher bar than it soundshttps://usetoolshed.com/beating-buy-and-hold-is-a-high-barhttps://usetoolshed.com/beating-buy-and-hold-is-a-high-bar"My strategy made money" sounds like success. It isn't, by itself — the real questionThu, 23 Jul 2026 00:00:00 GMT CIDR notation and subnetting explained, with the math worked outhttps://usetoolshed.com/cidr-notation-and-subnetting-explainedhttps://usetoolshed.com/cidr-notation-and-subnetting-explained/24 shows up constantly in networking — router configs, firewall rules, cloudFri, 24 Jul 2026 00:00:00 GMT What a context window is, and why bigger isn't always better for accuracyhttps://usetoolshed.com/context-window-bigger-isnt-always-betterhttps://usetoolshed.com/context-window-bigger-isnt-always-betterA model's context window is the maximum amount of text (measured in tokens, not wordsThu, 23 Jul 2026 00:00:00 GMT Cron jobs that silently don't run in WSL2: common causes and how to checkhttps://usetoolshed.com/cron-jobs-silently-not-running-in-wsl2https://usetoolshed.com/cron-jobs-silently-not-running-in-wsl2A cron job that "should" work but never actually runs, with no error anywhere, is oneThu, 23 Jul 2026 00:00:00 GMT Diagnosing race conditions in shell scripts run by cron vs interactivelyhttps://usetoolshed.com/cron-race-conditions-shell-scriptshttps://usetoolshed.com/cron-race-conditions-shell-scriptsA script works perfectly every time you run it by hand, then fails intermittently —Thu, 23 Jul 2026 00:00:00 GMT Discord webhooks vs email vs Slack for free automated alerting: setup effort comparedhttps://usetoolshed.com/discord-webhooks-vs-email-vs-slack-alertinghttps://usetoolshed.com/discord-webhooks-vs-email-vs-slack-alertingA script needs to tell someone when something happens — a job failed, a thresholdThu, 23 Jul 2026 00:00:00 GMT Diagnosing "connection refused" between Docker Compose services on a shared networkhttps://usetoolshed.com/docker-compose-connection-refusedhttps://usetoolshed.com/docker-compose-connection-refusedTwo containers in the same docker-compose.yml, one can't reach the other, and theThu, 23 Jul 2026 00:00:00 GMT `depends_on` doesn't wait for your service to be ready — here's the fixhttps://usetoolshed.com/docker-compose-healthchecks-and-depends-onhttps://usetoolshed.com/docker-compose-healthchecks-and-depends-onA common Docker Compose bug: service B lists dependson: [A], but B still crashesThu, 23 Jul 2026 00:00:00 GMT What "effort" and thinking budgets actually control when calling an LLM APIhttps://usetoolshed.com/effort-and-thinking-budgets-explainedhttps://usetoolshed.com/effort-and-thinking-budgets-explainedTwo knobs get confused constantly when calling a reasoning-capable model API: how muchThu, 23 Jul 2026 00:00:00 GMT GitHub Actions vs Cloudflare Pages built-in builds: free tier CI minutes comparedhttps://usetoolshed.com/github-actions-vs-cloudflare-pages-buildshttps://usetoolshed.com/github-actions-vs-cloudflare-pages-buildsIf you're deploying a static site and deciding whether to let Cloudflare Pages buildThu, 23 Jul 2026 00:00:00 GMT What's actually inside a JWT, and why decoding one isn't the same as verifying ithttps://usetoolshed.com/jwt-structure-explainedhttps://usetoolshed.com/jwt-structure-explainedA JWT (JSON Web Token, defined in [RFC 7519](https://www.rfc-editor.org/rfc/rfc7519))Fri, 24 Jul 2026 00:00:00 GMT Understanding Linux file permissions and umask, for people who always just chmod 777https://usetoolshed.com/linux-file-permissions-and-umaskhttps://usetoolshed.com/linux-file-permissions-and-umaskchmod 777 makes the permission error go away. It also makes the file writableThu, 23 Jul 2026 00:00:00 GMT Python venv vs virtualenv vs pipx: when to use which in 2026https://usetoolshed.com/python-venv-vs-virtualenv-vs-pipxhttps://usetoolshed.com/python-venv-vs-virtualenv-vs-pipxThree tools, overlapping names, genuinely different jobs. Picking the wrong one isThu, 23 Jul 2026 00:00:00 GMT Reading systemd unit status and logs with journalctl for a beginnerhttps://usetoolshed.com/reading-journalctl-for-a-beginnerhttps://usetoolshed.com/reading-journalctl-for-a-beginnerSomething isn't running, or a cron job silently never fires, and the fix always startsThu, 23 Jul 2026 00:00:00 GMT What a Sharpe ratio is, and why a high return with a low Sharpe ratio is a red flaghttps://usetoolshed.com/sharpe-ratio-red-flaghttps://usetoolshed.com/sharpe-ratio-red-flagA trading strategy that returned 50% sounds better than one that returned 20%. ItThu, 23 Jul 2026 00:00:00 GMT Free static hosting for a monetized site: GitHub Pages vs Cloudflare Pages vs Vercelhttps://usetoolshed.com/static-hosting-for-a-monetized-site-comparedhttps://usetoolshed.com/static-hosting-for-a-monetized-site-comparedIf you're hosting a static site that'll eventually carry ads or affiliate links, theThu, 23 Jul 2026 00:00:00 GMT Structured outputs vs asking nicely for JSON: why one is reliable and the other isn'thttps://usetoolshed.com/structured-outputs-vs-asking-nicely-for-jsonhttps://usetoolshed.com/structured-outputs-vs-asking-nicely-for-json"Respond only in valid JSON matching this schema" in a prompt works most of the time.Thu, 23 Jul 2026 00:00:00 GMT What prompt caching actually does and when it saves moneyhttps://usetoolshed.com/what-prompt-caching-actually-doeshttps://usetoolshed.com/what-prompt-caching-actually-does"Prompt caching" sounds like it should mean the API remembers your conversation soThu, 23 Jul 2026 00:00:00 GMT Windows Security Event IDs worth recognizing on sighthttps://usetoolshed.com/windows-security-event-ids-for-soc-analystshttps://usetoolshed.com/windows-security-event-ids-for-soc-analystsWindows generates a lot of security events, and most of them don't matter forFri, 24 Jul 2026 00:00:00 GMT Fix "externally-managed-environment" and missing venv on Ubuntu 26.04 / WSL2https://usetoolshed.com/wsl2-python-venv-externally-managed-fixhttps://usetoolshed.com/wsl2-python-venv-externally-managed-fixIf you're on a fresh Ubuntu 24.04+/26.04 system (including WSL2) and run into eitherThu, 23 Jul 2026 00:00:00 GMT