Add app-crypt/salty

Signed-off-by: Shin'ya Minazuki <shinyoukai@laidback.moe>

app-crypt/salty/metadata.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="person">
+		<email>shinyoukai@laidback.moe</email>
+		<name>Shin'ya Minazuki</name>
+	</maintainer>
+</pkgmetadata>

app-crypt/salty/salty-9999.ebuild

@@ -0,0 +1,35 @@
+# Copyright 2026 Shin'ya Minazuki
+EAPI=8
+
+inherit git-r3 go-module
+
+DESCRIPTION="A command-line tool using the saltpack messaging format"
+HOMEPAGE="https://git.mills.io/prologic/salty"
+EGIT_REPO_URI="https://git.mills.io/prologic/salty.git"
+
+LICENSE="MIT"
+SLOT="0"
+KEYWORDS="~amd64 ~arm64 ~x86"
+
+DOCS=( README.md )
+
+src_unpack() {
+	git-r3_src_unpack
+	go-module_live_vendor
+}
+
+src_compile() {
+	export CGO_ENABLED=0
+	ego build -tags "netgo static_build" -installsuffix netgo ./cmd/salty/...
+	ego build -tags "netgo static_build" -installsuffix netgo ./cmd/salty-keygen/...
+}
+
+src_test() {
+	export CGO_ENABLED=1
+	ego test -v -cover -race -coverprofile=coverage.out ./...
+}
+
+src_install() {
+	dobin salty
+	dobin salty-keygen
+}