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authorSacha Chua <sacha@sachachua.com>2026-09-25 11:20:07 -0400
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+[[!meta title="Beyond Shell History: Saving Compilation Output in Emacs"]]
+[[!meta copyright="Copyright &copy; 2026 Jonathan Otsuka"]]
+[[!inline pages="internal(2026/info/compile-nav)" raw="yes"]]
+
+<!-- Initially generated with emacsconf-publish-talk-page and then left alone for manual editing -->
+<!-- You can manually edit this file to update the abstract, add links, etc. --->
+
+
+# Beyond Shell History: Saving Compilation Output in Emacs
+Jonathan Otsuka (he/him) - Pronunciation: O-tsu-ka, https://github.com/djgoku/compilation-history
+
+[[!inline pages="internal(2026/info/compile-before)" raw="yes"]]
+
+I often want to look up a command I ran earlier and see what it printed.
+Shell history gives me the command, but not its output. Emacs compilation
+buffers have both, but once the buffer is gone, I need somewhere else to look.
+
+I built `compilation-history` to save that information. It stores each
+compilation in SQLite, including the command, output, exit code, timing,
+working directory, and Git context. I can search previous runs, reopen their
+output, and run a command again without having to piece it together from
+memory or notes.
+
+I'll show how I use the package and how it saves and displays previous runs.
+I'll also show how I use it with AI coding agents. You can use
+`emacs-mcp-server` or just plain `emacsclient` to have an agent run commands
+through `compilation-start`. Those commands end up in the same history as my own,
+so I can go back and check what a test, build, or diagnostic command printed
+after the agent session is over.
+
+About the speaker:
+
+Jonathan Otsuka is a software engineer who enjoys working with Emacs
+Lisp and Elixir. His open-source projects include
+\`compilation-history\`, \`sops\` for editing encrypted files in Emacs,
+and, more recently, \`misemacs\`, a tool for creating reproducible,
+self-contained Emacs builds. away from the keyboard, he enjoys
+swimming and cycling.
+
+
+
+[[!inline pages="internal(2026/info/compile-after)" raw="yes"]]
+
+[[!inline pages="internal(2026/info/compile-nav)" raw="yes"]]
+
+