internal/rosa/stage0: remove unused layers

The stage0 toolchain no longer requires bundled dependencies other than the bare toolchain and environment itself.

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

internal/rosa/stage0.go

@@ -3,39 +3,25 @@ package rosa
 import (
 	"sync"
 
+	"hakurei.app/fhs"
 	"hakurei.app/internal/pkg"
 )
 
 func (t Toolchain) newStage0() (pkg.Artifact, string) {
-	return t.New("rosa-stage0", 0, []pkg.Artifact{
-		t.Load(Musl),
-
-		t.Load(Zlib),
-		t.Load(Bzip2),
-
-		t.Load(Patch),
-		t.Load(Make),
-		t.Load(CMake),
-		t.Load(Ninja),
-
-		t.Load(Libffi),
-		t.Load(Python),
-		t.Load(Perl),
-		t.Load(Diffutils),
-		t.Load(Bash),
-		t.Load(Gawk),
-		t.Load(Coreutils),
-		t.Load(Findutils),
-
-		t.Load(KernelHeaders),
-	}, nil, nil, `
+	return t.New("rosa-stage0", 0, t.AppendPresets(nil,
+		Bzip2,
+	), nil, nil, `
 umask 377
 tar \
 	-vjc \
-	-C / \
+	-C /stage0 \
 	-f /work/stage0-`+triplet()+`.tar.bz2 \
-	system bin usr/bin/env
-`), Unversioned
+	.
+`, pkg.Path(fhs.AbsRoot.Append("stage0"), false, t.AppendPresets(nil,
+		LLVM,
+		Mksh,
+		toyboxEarly,
+	)...)), Unversioned
 }
 func init() {
 	artifactsM[Stage0] = Metadata{