simplify build to use only cosmocc

.github/cosmo/build

@@ -1,12 +1,38 @@
 #!/bin/sh
 set -eux
 
-# copy janet recipe
-mkdir -p /sc/superconfigure/janet
-cp ./.github/cosmo/recipe.mk /sc/superconfigure/janet/BUILD.mk
-echo 'include janet/BUILD.mk' >> /sc/superconfigure/custom.mk
+COSMO_DIR="/sc/cosmocc"
 
-# build janet with cosmopolitan libc
-export SOURCE_DIR=$(realpath .)
-cd /sc/superconfigure
-make o/janet/built.fat
+# build x86_64
+X86_64_CC="/sc/cosmocc/bin/x86_64-unknown-cosmo-cc"
+X86_64_AR="/sc/cosmocc/bin/x86_64-unknown-cosmo-ar"
+mkdir -p /sc/cosmocc/x86_64
+make CC="$X86_64_CC" AR="$X86_64_AR" HAS_SHARED=0 JANET_NO_AMALG=1
+cp build/janet /sc/cosmocc/x86_64/janet
+make clean
+
+# build aarch64
+AARCH64_CC="/sc/cosmocc/bin/aarch64-unknown-cosmo-cc"
+AARCH64_AR="/sc/cosmocc/bin/aarch64-unknown-cosmo-ar"
+mkdir -p /sc/cosmocc/arch64
+make CC="$AARCH64_CC" AR="$AARCH64_AR" HAS_SHARED=0 JANET_NO_AMALG=1
+cp build/janet /sc/cosmocc/aarch64/janet
+make clean
+
+# fat binary
+apefat () {
+    OUTPUT="$1"
+    OLDNAME_X86_64="$(basename -- "$2")"
+    OLDNAME_AARCH64="$(basename -- "$3")"
+    TARG_FOLD="$(dirname "$OUTPUT")"
+    "$APELINK" -l "$COSMO_DIR/bin/ape-x86_64.elf" \
+        -l "$COSMO_DIR/bin/ape-aarch64.elf" \
+        -M "$COSMO_DIR/bin/ape-m1.c" \
+        -o "$OUTPUT" \
+        "$2" \
+        "$3"
+    cp "$2" "$TARG_FOLD/$OLDNAME_X86_64.x86_64"
+    cp "$3" "$TARG_FOLD/$OLDNAME_AARCH64.aarch64"
+}
+
+apefat ./janet.com /sc/cosmocc/x86_64/janet /sc/cosmocc/aarch64/janet

.github/cosmo/setup

@@ -8,21 +8,14 @@ sudo apt-get install -y ca-certificates libssl-dev\
     cmake ninja-build bison zip\
     pkg-config build-essential autoconf re2c
 
-# clone superconfigure
+# download cosmocc
 cd /sc
-git clone https://github.com/ahgamut/superconfigure --depth=1 --branch=z0.0.39
+wget https://github.com/jart/cosmopolitan/releases/download/3.3.3/cosmocc-3.3.3.zip
+mkdir -p cosmocc
+cd cosmocc
+unzip ../cosmocc-3.3.3.zip
 
-# the zip folder
-sudo mkdir -p /zip
-sudo chmod -R 0777 /zip
-
-# clone cosmo
-cd /sc/superconfigure
-git clone https://github.com/jart/cosmopolitan --depth=1 --branch=3.3.3 cosmopolitan
-sudo cp cosmopolitan/build/bootstrap/ape.elf /usr/bin/ape
+# register
+cd /sc/cosmocc
+sudo cp ./bin/ape-x86_64.elf /usr/bin/ape
 sudo sh -c "echo ':APE:M::MZqFpD::/usr/bin/ape:' >/proc/sys/fs/binfmt_misc/register"
-# ls /proc/sys/fs/binfmt_misc/
-
-# build cosmo
-cd /sc/superconfigure
-./.github/scripts/cosmo