TIL
Bedrock Foundation Model ARNs have an empty account ID
Foundation Model ARNs use arn:aws:bedrock:region::foundation-model/... with no account ID. Replacing the ACCOUNT_ID placeholder from samples breaks the IAM policy.
TIL
Today I Learned — Daily learnings
TIL
EKS access entries and access policies are separate — you need both
The access entry auto-created by EKS Capabilities has no deploy permissions. Without associate-access-policy, ArgoCD Application sync silently fails.
1 min read
TIL
Check Dependabot alert details from the terminal with gh CLI
Use gh api to get Dependabot vulnerability alert details — package name, severity, and fix version — without leaving the terminal.
TIL
Ghostty SSH input issues are caused by missing terminfo on the remote host
SSH from Ghostty to Ubuntu causes broken input because the remote host lacks xterm-ghostty terminfo. Setting shell-integration-features to ssh-terminfo,ssh-env fixes it.
TIL
Next.js App Router needs a catch-all route for locale-aware 404 pages
Accessing /ja/nonexistent redirects to /en instead of showing a Japanese 404 page. Both a [...slug] catch-all route and updating the root not-found.tsx to render a 404 UI are required.
1 min read
TIL
Playwright HTML report auto-open hangs in headless environments
Playwright E2E tests hang after completion in Codespaces or CI because the HTML reporter tries to open a browser. Setting open: never in playwright.config.ts fixes it.
1 min read
TIL
Slim down code block scrollbars with scrollbar-width and -webkit-scrollbar
Browser-default scrollbars on pre elements look bulky. scrollbar-width: thin for Firefox and ::-webkit-scrollbar for Chrome/Safari make them minimal.
1 min read
TIL
Lambda AZ metadata Powertools support: Python not yet released, TypeScript available
AWS docs show Powertools code for both Python and TypeScript, but Python 3.25.0 lacks the lambda_metadata module (ModuleNotFoundError). TypeScript @aws-lambda-powertools/commons 2.32.0 works.
1 min read
TIL
HTML <details> open attribute can't be controlled with CSS media queries
Wanted to open details on desktop and close on mobile. The open attribute is an HTML attribute, not a CSS property, so media queries don't work. useEffect with window.innerWidth is the solution.
1 min read
TIL
Next.js path aliases resolve identically whether the target is a file or a directory with index.ts
Refactored src/lib/i18n.ts into src/lib/i18n/index.ts without changing any of the 50+ import statements using @/lib/i18n. Node.js module resolution falls back to index.ts automatically.
1 min read