FOSDEM 2026 - Lisp is clay: the power of composable DSLs

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Brussels / 31 January & 1 February 2026

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FOSDEM 2026<br>Schedule<br>Events<br>Developer rooms<br>Declarative and Minimalistic Computing<br>Lisp is clay: the power of composable DSLs

Lisp is clay: the power of composable DSLs

Track : Declarative and Minimalistic Computing

Room : UB4.136

Day : Sunday

Start (UTC+1) : 11:30

End (UTC+1) : 12:00

Chat :<br>Join the conversation!

Lisp is often decried for being hard to read and having too little syntax. This talk argues that the parentheses are not the point, but the uniform structure is! Lisp is like clay: a medium which is versatile for building many shapes and sculpting beautiful new technical visions. Christine Lemmer-Webber makes an argument that lisp's power comes from composable DSLs, and that this power is what gives projects like Guix and Spritely much of their strength.

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Christine Lemmer-Webber

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Video recording (AV1/WebM; preferred) - 110.5 MB

Video recording (MP4; for legacy systems) - 582.9 MB

Video recording subtitle file (VTT)

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