diff --git a/package.env/compiler b/package.env/compiler
new file mode 100644
index 0000000..7b86cdb
--- /dev/null
+++ b/package.env/compiler
@@ -0,0 +1,6 @@
+app-arch/unzip no-lto
+
+dev-libs/libvterm gcc mold
+dev-libs/libtermkey gcc mold
+
+media-gfx/sam2p gcc mold
diff --git a/package.env/perl b/package.env/perl
index 70f73db..55216ea 100644
--- a/package.env/perl
+++ b/package.env/perl
@@ -2,3 +2,4 @@ dev-lang/perl gcc mold
 
 dev-perl/* gcc mold
 perl-core/* gcc mold
+
diff --git a/package.env/sys b/package.env/sys
index 46c23dc..679c4ca 100644
--- a/package.env/sys
+++ b/package.env/sys
@@ -1,11 +1,7 @@
 sys-kernel/gentoo-kernel clang lld no-lto
 sys-kernel/* gcc mold no-lto
 
-sys-libs/glib no-lto
-sys-libs/glibc no-lto
-sys-devel/binutils no-lto
+sys-libs/glib gcc mold no-lto
+sys-libs/glibc gcc mold no-lto
+sys-devel/binutils gcc mold no-lto
 
-app-arch/unzip no-lto
-
-dev-libs/libvterm gcc mold
-dev-libs/libtermkey gcc mold
diff --git a/package.use/latex b/package.use/latex
new file mode 100644
index 0000000..a6fa87a
--- /dev/null
+++ b/package.use/latex
@@ -0,0 +1,3 @@
+app-text/texlive luatex science
+
+app-text/texlive-core xetex