internal/rosa/package: migrate stage0

Signed-off-by: Ophestra <cat@gensokyo.uk>

internal/rosa/package/stage0.az

@@ -1,5 +1,31 @@
-package stage0-dist {
+package rosa-stage0 {
 	description = "Rosa OS stage0 bootstrap seed";
+	version = unversioned;
+	exclude = true;
+
+	source = hakurei-source;
+	extra = [
+		llvm,
+		mksh,
+		toybox-early,
+	];
+	overlay = "/stage0";
+	exec = generic {
+		build = `
+umask 377
+tar \
+	-vjc \
+	-C /stage0 \
+	-f /work/stage0-`+triple+`.tar.bz2 \
+	.
+`;
+	};
+
+	inputs = [ bzip2 ];
+}
+
+package stage0-dist {
+	description = "Rosa OS stage0 bootstrap seed (binary distribution)";
 	exclude = true;
 
 	version* = "20260504";

internal/rosa/rosa.go

@@ -111,7 +111,7 @@ const (
 	stageIntermediateGentoo
 
 	// stageStdGentoo is like Std, but bootstrapped from stageGentoo. This
-	// toolchain creates the first [Stage0] distribution.
+	// toolchain creates the first stage0 distribution.
 	stageStdGentoo
 
 	// stageEarly denotes the stage0 toolchain. Special care must be taken
@@ -322,24 +322,6 @@ mkdir -vp /work/system/bin
 	)
 }
 
-// NewStage0 returns a [pkg.Artifact] curing to a stage0 distribution.
-func (t Toolchain) NewStage0() pkg.Artifact {
-	return t.New("stage0", 0, t.Append(nil,
-		H("bzip2"),
-	), nil, nil, `
-umask 377
-tar \
-	-vjc \
-	-C /stage0 \
-	-f /work/stage0-`+t.triple()+`.tar.bz2 \
-	.
-`, pkg.Path(fhs.AbsRoot.Append("stage0"), false, t.Append(nil,
-		_llvm,
-		_mksh,
-		_toyboxEarly,
-	)...))
-}
-
 // HasStageEarly returns whether a stage0 distribution is available.
 func (s *S) HasStageEarly() (ok bool) {
 	func() {