I am uploading a NMU to DELAYED/3. debdiff attached.
diff -Nru amoeba-data-1.1/debian/changelog amoeba-data-1.1/debian/changelog
--- amoeba-data-1.1/debian/changelog 2022-12-09 23:19:59.000000000 +0100
+++ amoeba-data-1.1/debian/changelog 2022-12-09 23:15:44.000000000 +0100
@@ -1,3 +1,10 @@
+amoeba-data (1.1-7.1) unstable; urgency=medium
+
+ * Non-maintainer upload.
+ * Convert to 3.0 source format. (Closes: #1007544)
+
+ -- Bastian Germann <b...@debian.org> Fri, 09 Dec 2022 23:15:44 +0100
+
amoeba-data (1.1-7) unstable; urgency=medium
* Add empty build-arch and build-indep targets. (Closes: #999229)
diff -Nru amoeba-data-1.1/debian/patches/Makefile.patch
amoeba-data-1.1/debian/patches/Makefile.patch
--- amoeba-data-1.1/debian/patches/Makefile.patch 1970-01-01
01:00:00.000000000 +0100
+++ amoeba-data-1.1/debian/patches/Makefile.patch 2022-12-09
23:15:44.000000000 +0100
@@ -0,0 +1,10 @@
+Description: Add Makefile
+---
+--- /dev/null
++++ amoeba-data-1.1/Makefile
+@@ -0,0 +1,5 @@
++clean:
++all:
++
++install:
++ install -m 0644 demo.dat $(DESTDIR)/usr/share/amoeba
diff -Nru amoeba-data-1.1/debian/patches/series
amoeba-data-1.1/debian/patches/series
--- amoeba-data-1.1/debian/patches/series 1970-01-01 01:00:00.000000000
+0100
+++ amoeba-data-1.1/debian/patches/series 2022-12-09 23:15:44.000000000
+0100
@@ -0,0 +1 @@
+Makefile.patch
diff -Nru amoeba-data-1.1/debian/source/format
amoeba-data-1.1/debian/source/format
--- amoeba-data-1.1/debian/source/format 1970-01-01 01:00:00.000000000
+0100
+++ amoeba-data-1.1/debian/source/format 2022-12-09 23:15:30.000000000
+0100
@@ -0,0 +1 @@
+3.0 (quilt)
diff -Nru amoeba-data-1.1/Makefile amoeba-data-1.1/Makefile
--- amoeba-data-1.1/Makefile 2022-12-09 23:19:59.000000000 +0100
+++ amoeba-data-1.1/Makefile 1970-01-01 01:00:00.000000000 +0100
@@ -1,5 +0,0 @@
-clean:
-all:
-
-install:
- install -m 0644 demo.dat $(DESTDIR)/usr/share/amoeba
