caillou.chBlog of caillou.chhttps://caillou.ch/mdx kitchen sinkhttps://caillou.ch/blog/2026-02-22-mdx-kitchen-sink/https://caillou.ch/blog/2026-02-22-mdx-kitchen-sink/every MDX formatting option this site supports, in one place.Sun, 22 Feb 2026 00:00:00 GMTcli tool: worktrunkhttps://caillou.ch/blog/2026-03-20-cli-tool-worktrunk/https://caillou.ch/blog/2026-03-20-cli-tool-worktrunk/git worktree management for humans.Fri, 20 Mar 2026 00:00:00 GMTresponsive font-weight with tailwindhttps://caillou.ch/blog/2026-03-22-responsive-font-weight-tailwind/https://caillou.ch/blog/2026-03-22-responsive-font-weight-tailwind/lighter font weights on HiDPI screens using Tailwind v4 theme variables.Sun, 22 Mar 2026 00:00:00 GMTpointer events replace touch + mouse in drag and drophttps://caillou.ch/blog/2026-03-24-pointer-events-dnd/https://caillou.ch/blog/2026-03-24-pointer-events-dnd/pointerdown/up/move handles both touch and mouse. no more duplicate listeners.Tue, 24 Mar 2026 00:00:00 GMTiTerm: unlimited scrollbackhttps://caillou.ch/blog/2026-05-16-iterm-unlimited-scrollback/https://caillou.ch/blog/2026-05-16-iterm-unlimited-scrollback/iTerm's default scrollback is 1000 lines. you can turn that off.Sat, 16 May 2026 00:00:00 GMTa fish-style prompt for PowerShellhttps://caillou.ch/blog/2026-06-03-starship-prompt-powershell/https://caillou.ch/blog/2026-06-03-starship-prompt-powershell/starship gives PowerShell a prompt i can live with.Wed, 03 Jun 2026 00:00:00 GMTfish-style abbreviations for PowerShellhttps://caillou.ch/blog/2026-06-05-fish-abbreviations-powershell/https://caillou.ch/blog/2026-06-05-fish-abbreviations-powershell/abbreviations expand inline before they run. here's how in PowerShell.Fri, 05 Jun 2026 00:00:00 GMTreproduce a flaky test with stress-nghttps://caillou.ch/blog/2026-06-09-reproduce-flaky-test-stress-ng/https://caillou.ch/blog/2026-06-09-reproduce-flaky-test-stress-ng/it passed locally and failed on CI. stress-ng made it fail locally too.Tue, 09 Jun 2026 00:00:00 GMTserialize TanStack Query mutationshttps://caillou.ch/blog/2026-06-11-serialize-tanstack-query-mutations/https://caillou.ch/blog/2026-06-11-serialize-tanstack-query-mutations/my optimistic drag and drop raced itself. one scope id fixed it.Thu, 11 Jun 2026 00:00:00 GMTTIL the <a> tag has a download attributehttps://caillou.ch/blog/2026-06-15-anchor-download-attribute/https://caillou.ch/blog/2026-06-15-anchor-download-attribute/i spotted the download attribute on an anchor tag and assumed Content-Disposition already did the job. turns out it's for when you can't touch the server.Mon, 15 Jun 2026 00:00:00 GMTstop pnpm churning package.json line endingshttps://caillou.ch/blog/2026-06-16-pnpm-package-json-line-endings/https://caillou.ch/blog/2026-06-16-pnpm-package-json-line-endings/pnpm add rewrote package.json from CRLF to LF and git diffed the whole file. one line in gitattributes fixed it.Tue, 16 Jun 2026 00:00:00 GMTfake a non-retina screen on Chromehttps://caillou.ch/blog/2026-06-17-chrome-fake-non-retina-screen/https://caillou.ch/blog/2026-06-17-chrome-fake-non-retina-screen/a Chrome flag retired the old non-retina monitor I kept around just to test on.Wed, 17 Jun 2026 00:00:00 GMTmake shift+enter a newline in Claude Code on Windowshttps://caillou.ch/blog/2026-06-18-claude-code-shift-enter-windows-terminal/https://caillou.ch/blog/2026-06-18-claude-code-shift-enter-windows-terminal/shift+enter sent my half-written message instead of making a newline. ctrl+j fixes it in any terminal; a keybinding wins back the muscle memory.Thu, 18 Jun 2026 00:00:00 GMTkeep an AVD session awake with f15https://caillou.ch/blog/2026-06-19-keep-avd-awake-f15/https://caillou.ch/blog/2026-06-19-keep-avd-awake-f15/AVD logged me out over lunch and killed a long job. f15 is a key that does nothing, so I send one every two minutes to look busy.Fri, 19 Jun 2026 00:00:00 GMTreset Karabiner after sleep without a reboothttps://caillou.ch/blog/2026-06-20-reset-karabiner-after-sleep/https://caillou.ch/blog/2026-06-20-reset-karabiner-after-sleep/Karabiner stopped remapping after my Mac woke. i finally found a way to reset it without a reboot.Sat, 20 Jun 2026 00:00:00 GMTlazygit: open a file straight from the diffhttps://caillou.ch/blog/2026-06-24-lazygit-open-file-from-diff/https://caillou.ch/blog/2026-06-24-lazygit-open-file-from-diff/to edit the file i'm looking at, i'd have to find it again in my editor. pressing `e` opens it directly, in whatever editor i configure.Wed, 24 Jun 2026 00:00:00 GMTdisable Chrome's AI features with a macOS config profilehttps://caillou.ch/blog/2026-06-26-disable-chrome-ai-omnibox/https://caillou.ch/blog/2026-06-26-disable-chrome-ai-omnibox/Chrome put AI in my address bar, and the flags I turned off came back after an update. a macOS config profile sets the enterprise policy that turns it off for good.Fri, 26 Jun 2026 00:00:00 GMTfinding what freezes VS Code: tsserver log and extension host profilehttps://caillou.ch/blog/2026-07-02-vscode-tsserver-log-extension-host-profile/https://caillou.ch/blog/2026-07-02-vscode-tsserver-log-extension-host-profile/cmd+click on a type froze VS Code, and the tsserver log looked healthy. an extension host profile found the culprit.Thu, 02 Jul 2026 00:00:00 GMTcopy a Claude Code answer as markdown with /copyhttps://caillou.ch/blog/2026-07-03-claude-code-copy-markdown/https://caillou.ch/blog/2026-07-03-claude-code-copy-markdown/mouse-copying a Claude Code answer loses the code ticks and the links. /copy puts the raw markdown on the clipboard instead.Fri, 03 Jul 2026 00:00:00 GMTsave the Chrome console to a filehttps://caillou.ch/blog/2026-07-04-chrome-devtools-console-save-as/https://caillou.ch/blog/2026-07-04-chrome-devtools-console-save-as/a web app left open overnight showed errors in the morning. right-click the console, save as, and the whole session is a log file.Sat, 04 Jul 2026 00:00:00 GMTreact: a render prop is called, a slot is mountedhttps://caillou.ch/blog/2026-07-09-render-props-vs-slots/https://caillou.ch/blog/2026-07-09-render-props-vs-slots/MUI render props always looked like remount traps to me. turns out my suspicion was exactly backwards: called functions never enter the tree, mounted components do.Thu, 09 Jul 2026 00:00:00 GMThiding ::before decorations from screen readershttps://caillou.ch/blog/2026-07-10-css-content-alt-text/https://caillou.ch/blog/2026-07-10-css-content-alt-text/this site fakes markdown syntax with css generated content, and screen readers read every marker aloud. the content property accepts empty alt text that mutes them.Fri, 10 Jul 2026 00:00:00 GMTPowerShell 7 ships with fish-style autosuggestionshttps://caillou.ch/blog/2026-07-17-powershell-7-autosuggestions/https://caillou.ch/blog/2026-07-17-powershell-7-autosuggestions/a script refused to run on my shell. the new shell finishes my sentences.Fri, 17 Jul 2026 00:00:00 GMTreplacing ag with rg and fdhttps://caillou.ch/blog/2026-07-19-replacing-ag-with-rg-and-fd/https://caillou.ch/blog/2026-07-19-replacing-ag-with-rg-and-fd/the last ag release was in 2018. it took two tools and a fish abbr to replace it.Sun, 19 Jul 2026 00:00:00 GMTClaude Code's Bash tool runs zsh, not fishhttps://caillou.ch/blog/2026-08-20-claude-code-bash-tool-runs-zsh/https://caillou.ch/blog/2026-08-20-claude-code-bash-tool-runs-zsh/the system prompt said fish, so the LLM wrote fish. the tool ran zsh with an empty environment. a zprofile and four lines of CLAUDE.md fixed it.Thu, 20 Aug 2026 00:00:00 GMTfish-style autocd for PowerShellhttps://caillou.ch/blog/2026-08-28-powershell-autocd-command-not-found-action/https://caillou.ch/blog/2026-08-28-powershell-autocd-command-not-found-action/typing .. in pwsh was not a recognized command. a CommandNotFoundAction hook makes any directory a command.Fri, 28 Aug 2026 00:00:00 GMT