diff --git a/dev-lang/cc65/cc65-9999.ebuild b/dev-lang/cc65/cc65-9999.ebuild
new file mode 100644
index 0000000000..f7f4043e76
--- /dev/null
+++ b/dev-lang/cc65/cc65-9999.ebuild
@@ -0,0 +1,22 @@
+# Copyright 2022, 2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit git-r3
+
+DESCRIPTION="Cross-development package for 65(C)02 systems"
+HOMEPAGE="https://cc65.github.io/"
+EGIT_REPO_URI="https://github.com/cc65/cc65.git"
+
+LICENSE="ZLIB"
+SLOT="0"
+
+src_compile() {
+	emake PREFIX="${EPREFIX}/usr"
+}
+
+src_install() {
+	emake DESTDIR="${D}" PREFIX="${EPREFIX}/usr" install
+	dodoc README.md
+}