untested. but this should work quite nicely

_docs/PKGBUILD.templates.d/release/00.header

@@ -0,0 +1,2 @@
+# Maintainer: %%MAINTNAME%%
+validpgpkeys=('%%GPGKEY%%')

_docs/PKGBUILD.templates.d/release/01.moreinfo

@@ -0,0 +1,2 @@
+# Bug reports can be filed at https://bugs.square-r00t.net/index.php?project=3
+# News updates for packages can be followed at https://devblog.square-r00t.net

_docs/PKGBUILD.templates.d/release/02.pkgmeta

@@ -0,0 +1,13 @@
+pkgname=%%PKGNAME%%
+pkgver=%%PKGVER%%
+pkgrel=1
+pkgdesc="%%PKGDESC%%"
+arch=('i686' 'x86_64')
+url="%%PKGURL%%"
+license=('%%LICENSE%%')
+depends=('%%PKGDEPS%%')
+optdepends=('%%OPTDEPS%%')
+makedepends=('%%BUILDDEPS%%')
+_pkgname=%%PKGNAME%%
+provides=("%%_PKGNAME%%")
+#conflicts=("%%_PKGNAME%%")

_docs/PKGBUILD.templates.d/release/03.sources

@@ -0,0 +1,7 @@
+install=
+changelog=
+noextract=()
+source=("%%SRCURL%%"
+        "%%SRCFILE%%.sig")
+sha512sums=('cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e'
+            'SKIP')

_docs/PKGBUILD.templates.d/release/04.build

@@ -0,0 +1,4 @@
+build() {
+        cd "${srcdir}/${_pkgname}/src"
+        make prefix=${pkgdir}/usr
+}

_docs/PKGBUILD.templates.d/release/05.package

@@ -0,0 +1,4 @@
+package() {
+        install -D -m755 ${srcdir}/${_pkgname}/src/${_pkgname} ${pkgdir}/usr/bin/${_pkgname}
+        install -D -m644 ${srcdir}/${_pkgname}/docs/README.html.en ${pkgdir}/usr/share/doc/${_pkgname}/README.html
+}