diff --git a/slides/fix-redirects.sh b/slides/fix-redirects.sh
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+++ b/slides/fix-redirects.sh
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+#!/bin/sh
+
+# This script helps to add "force-redirects" where needed.
+# This might replace your entire git repos with Vogon poetry.
+# Use at your own peril!
+
+set -eu
+
+# The easiest way to set this env var is by copy-pasting from
+# the netlify web dashboard, then doctoring the output a bit.
+# Yeah, that's gross, but after spending 10 minutes with the
+# API and the CLI and OAuth, it took about 10 seconds to do it
+# with le copier-coller, so ... :)
+
+SITES="
+2020-01-caen
+2020-01-zr
+2020-02-caen
+2020-02-enix
+2020-02-outreach
+2020-02-vmware
+2020-03-ardan
+2020-03-qcon
+alfun-2019-06
+boosterconf2018
+clt-2019-10
+dc17eu
+decembre2018
+devopsdaysams2018
+devopsdaysmsp2018
+gotochgo2018
+gotochgo2019
+indexconf2018
+intro-2019-01
+intro-2019-04
+intro-2019-06
+intro-2019-08
+intro-2019-09
+intro-2019-11
+intro-2019-12
+k8s2d
+kadm-2019-04
+kadm-2019-06
+kube
+kube-2019-01
+kube-2019-02
+kube-2019-03
+kube-2019-04
+kube-2019-06
+kube-2019-08
+kube-2019-09
+kube-2019-10
+kube-2019-11
+lisa-2019-10
+lisa16t1
+lisa17m7
+lisa17t9
+maersk-2019-07
+maersk-2019-08
+ndcminnesota2018
+nr-2019-08
+oscon2018
+oscon2019
+osseu17
+pycon2019
+qconsf18wkshp
+qconsf2017intro
+qconsf2017swarm
+qconsf2018
+qconuk2019
+septembre2018
+sfsf-2019-06
+srecon2018
+swarm2017
+velny-k8s101-2018
+velocity-2019-11
+velocityeu2018
+velocitysj2018
+vmware-2019-11
+weka
+wwc-2019-10
+wwrk-2019-05
+wwrk-2019-06
+"
+
+for SITE in $SITES; do
+	echo "##### $SITE"
+	git checkout -q origin/$SITE
+	# No _redirects? No problem.
+	if ! [ -f _redirects ]; then
+		continue
+	fi
+	# If there is already a force redirect on /, we're good.
+	if grep '^/ .* 200!' _redirects; then
+		continue
+	fi
+	# If there is a redirect on / ... and it's not forced ... do something.
+	if grep "^/ .* 200$" _redirects; then
+		echo "##### $SITE needs to be patched"
+		sed -i 's,^/ \(.*\) 200$,/ \1 200!,' _redirects
+		git add _redirects
+		git commit -m "fix-redirects.sh: adding forced redirect"
+		git push origin HEAD:$SITE
+		continue
+	fi
+    if grep "^/ " _redirects; then
+		echo "##### $SITE with / but no status code"
+		echo "##### Should I add '200!' ?"
+		read foo
+		sed -i 's,^/ \(.*\)$,/ \1 200!,' _redirects
+		git add _redirects
+		git commit -m "fix-redirects.sh: adding status code and forced redirect"
+		git push origin HEAD:$SITE
+		continue
+	fi
+    echo "##### $SITE without / ?"
+    cat _redirects
+done