feat: add skeptical-updater 0.0.1 placeholder (packaging only, bumped by CI to the first upstream tag)

README.md

@@ -1 +1,21 @@
+# skeptical-updater
 Debian packaging for `skeptical-updater` package
+
+## Build
+
+The version in `debian/changelog` is a placeholder until CI bumps it to the
+first upstream tag: to build by hand, bump it to an existing tag first. Needs
+`build-essential`, `debhelper` and `devscripts` (`lintian` to check the result).
+
+```sh
+v=0.1.0    # an existing upstream tag
+dch -v "$v-1" "New upstream release."
+b=$(mktemp -d)
+curl -fL -o "$b/skeptical-updater_$v.orig.tar.gz" \
+  "https://git.bjphoster.com/source/skeptical-updater/archive/$v.tar.gz"
+mkdir "$b/src"
+tar -xzf "$b/skeptical-updater_$v.orig.tar.gz" -C "$b/src" --strip-components=1
+cp -a debian "$b/src/"
+(cd "$b/src" && dpkg-buildpackage -us -uc -b)
+ls "$b"/*.deb
+```