diff --git a/nomsu.lua b/nomsu.lua
index 4c3c9fc..95cd8dc 100644
--- a/nomsu.lua
+++ b/nomsu.lua
@@ -1476,7 +1476,7 @@ do
   var_pattern = re.compile("{| %space ((('%' {%varname}) / %word) %space)+ |}", stub_defs)
   NomsuCompiler = _class_0
 end
-if arg then
+if arg and debug.getinfo(2).func ~= require then
   colors = require('consolecolors')
   local parser = re.compile([[        args <- {| {:flags: flags? :} ({:input: input :} ";" ("-o;"{:output: output :} ";")?)? (";")? |} !.
         flags <- (({| ({flag} ";")* |}) -> set)
@@ -1532,14 +1532,16 @@ if arg then
     if args.flags["-i"] then
       nomsu:run('use "lib/core.nom"', "stdin")
       while true do
+        io.write(colored.bright(colored.yellow(">> ")))
         local buff = ""
         while true do
-          io.write(">> ")
           local line = io.read("*L")
           if line == "\n" or not line then
             break
           end
+          line = line:gsub("\t", "    ")
           buff = buff .. line
+          io.write(colored.dim(colored.yellow(".. ")))
         end
         if #buff == 0 then
           break
diff --git a/nomsu.moon b/nomsu.moon
index 0f9ebbf..639315c 100755
--- a/nomsu.moon
+++ b/nomsu.moon
@@ -927,7 +927,8 @@ class NomsuCompiler
             nomsu\require_file(filename)
             return statements:"nomsu:require_file(#{repr filename});"
 
-if arg
+-- Only run this code if this file was run directly with command line arguments, and not require()'d:
+if arg and debug.getinfo(2).func != require
     export colors
     colors = require 'consolecolors'
     parser = re.compile([[
@@ -979,13 +980,15 @@ if arg
             -- REPL
             nomsu\run('use "lib/core.nom"', "stdin")
             while true
+                io.write(colored.bright colored.yellow ">> ")
                 buff = ""
                 while true
-                    io.write(">> ")
                     line = io.read("*L")
                     if line == "\n" or not line
                         break
+                    line = line\gsub("\t", "    ")
                     buff ..= line
+                    io.write(colored.dim colored.yellow ".. ")
                 if #buff == 0
                     break
                 ok, ret = pcall(-> nomsu\run(buff, "stdin"))