diff --git a/.gitignore b/.gitignore
index 0af6c41..80f7f89 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,22 @@
-*.zo
-*.rktd
+
+# Created by https://www.toptal.com/developers/gitignore/api/racket
+# Edit at https://www.toptal.com/developers/gitignore?templates=racket
+
+### Racket ###
+# gitignore template for the Racket language
+# website: http://www.racket-lang.org/
+
+# DrRacket autosave files
 *.rkt~
+*.rkt.bak
+\#*.rkt#
+\#*.rkt#*#
+
+# Compiled racket bytecode
+compiled/
+*.zo
+
+# Dependency tracking files
+*.dep
+
+# End of https://www.toptal.com/developers/gitignore/api/racket
diff --git a/README.md b/README.md
index dee6e4b..bda8f65 100644
--- a/README.md
+++ b/README.md
@@ -5,3 +5,11 @@ i wanted to make a framework for extremely retargetable esolang compilation so i
 currently this defines a low-level IR and compilation framework for targeting. in the future, there
 will be a more usable language that compiles to the LLIR. and polyfills in case targets don't
 implement operations, etc
+
+## installation/usage
+```sh
+cd /path/to/shark-compiler
+raco pkg install
+```
+
+then write a file with `#lang shark/llir`
diff --git a/compiler.rkt b/compiler.rkt
old mode 100755
new mode 100644
index 473a31f..247cd1a
--- a/compiler.rkt
+++ b/compiler.rkt
@@ -1,4 +1,3 @@
-#!/usr/bin/env racket
 #lang racket
 
 ;; LLIR
@@ -394,57 +393,10 @@
           (hash-ref render (cons y x) #\space))))
     "\n"))
 
+;;;;;;;; #lang
+(define-syntax-rule (llir-module-begin EXPR ...)
+  (#%module-begin
+   (displayln (compile `(EXPR ...)))))
 
-;;;;;;;; demo
-
-(define prog
-  '((global count)
-    (global one)
-    (global zero)
-    (global j)
-    (global largest-j)
-    (global largest-value)
-    (global tmp)
-
-    (label main)
-    (set! zero 0)
-    (set! one 1)
-    (set! j 0)
-    (set! largest-j 0)
-    (set! largest-value -999999)
-    ;; get size of input stack
-    (asm! "DDDcsUsUsU" "r" "w" count)
-    (ifeq count zero exit sort-step)
-
-    (label sort-step)
-    ;; get value from input stack
-    (asm! "DDDrsuUsUsU" "r" "w" tmp)
-    (iflt tmp largest-value sort-step-cont sort-step-update)
-
-    (label sort-step-update)
-    (set! largest-j j)
-    (set! largest-value tmp)
-
-    (label sort-step-cont)
-    (add! j one)
-    (ifeq j count move-val sort-step)
-
-    (label move-val)
-    (set! j 0)
-
-    (label shift-loop)
-    (ifeq j largest-j shift-done shift-cont)
-    (label shift-cont)
-    (asm! "DDDuUUU" "r" "w" #f)
-    (add! j one)
-    (goto shift-loop)
-
-    (label shift-done)
-    ;; move input->output
-    (asm! "DDDsUUU" "r" "w" #f)
-    (goto main)
-
-    (label exit)
-    (terminate)))
-
-(displayln (compile prog))
+(provide (except-out (all-from-out racket) #%module-begin) ; probably overkill, w/e
+         (rename-out [llir-module-begin #%module-begin]))
diff --git a/demo.rkt b/demo.rkt
new file mode 100755
index 0000000..0d0cd69
--- /dev/null
+++ b/demo.rkt
@@ -0,0 +1,50 @@
+#!/usr/bin/env racket
+#lang shark/llir
+(global count)
+(global one)
+(global zero)
+(global j)
+(global largest-j)
+(global largest-value)
+(global tmp)
+
+(label main)
+(set! zero 0)
+(set! one 1)
+(set! j 0)
+(set! largest-j 0)
+(set! largest-value -999999)
+;; get size of input stack
+(asm! "DDDcsUsUsU" "r" "w" count)
+(ifeq count zero exit sort-step)
+
+(label sort-step)
+;; get value from input stack
+(asm! "DDDrsuUsUsU" "r" "w" tmp)
+(iflt tmp largest-value sort-step-cont sort-step-update)
+
+(label sort-step-update)
+(set! largest-j j)
+(set! largest-value tmp)
+
+(label sort-step-cont)
+(add! j one)
+(ifeq j count move-val sort-step)
+
+(label move-val)
+(set! j 0)
+
+(label shift-loop)
+(ifeq j largest-j shift-done shift-cont)
+(label shift-cont)
+(asm! "DDDuUUU" "r" "w" #f)
+(add! j one)
+(goto shift-loop)
+
+(label shift-done)
+;; move input->output
+(asm! "DDDsUUU" "r" "w" #f)
+(goto main)
+
+(label exit)
+(terminate)
diff --git a/info.rkt b/info.rkt
new file mode 100644
index 0000000..8fa429e
--- /dev/null
+++ b/info.rkt
@@ -0,0 +1,2 @@
+#lang info
+(define collection "shark")
diff --git a/llir/lang/reader.rkt b/llir/lang/reader.rkt
new file mode 100644
index 0000000..95303a3
--- /dev/null
+++ b/llir/lang/reader.rkt
@@ -0,0 +1,2 @@
+#lang s-exp syntax/module-reader
+"compiler.rkt"