diff --git a/.eslintrc.js b/.eslintrc.js
index 319d9880..9ddb1039 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -9,8 +9,8 @@ module.exports = {
   },
   extends: [
     /* disbale rules temporary, before the codebase refactored with module system */
-    // "eslint:recommended",
+    "eslint:recommended",
     "prettier",
     "prettier/babel"
   ]
-}
\ No newline at end of file
+}
diff --git a/Makefile b/Makefile
index 7a56ff2a..e5fa4bea 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,17 @@
-all: ide cmdline
-ide:
-	cd tools; node make_ide.js;
-cmdline:
-	cd tools; node make_cmdline.js;
+ALLSRC = $(wildcard lib/*.js) $(wildcard src/*.js)
+ALLTOOL = $(wildcard tools/*.js)
+
+all: ide site
+.PHONY: ide site clean
+
+ide: site/ide.html
+site: site/index.html
+
+site/ide.html: ${ALLSRC} ${ALLTOOL}
+	node tools/make_ide.js;
+
+site/index.html: ${ALLSRC} ${ALLTOOL}
+	node tools/make_site.js > site/index.html;
+
 clean: 
-	rm -f site/ide.html; rm -f build/*
\ No newline at end of file
+	rm -f site/ide.html; rm -f build/*
diff --git a/src/cli.js b/src/cli.js
index 9ab9f138..27bea5f4 100644
--- a/src/cli.js
+++ b/src/cli.js
@@ -5,7 +5,11 @@ const { render, unrender } = require("./render");
 const path = require("path");
 const commander = require("commander");
 
-var Logo = ` ,_ ,_\n \\/ ==\n /\\ []\n`;
+var Logo = `\
+ ,_ ,_
+ |/ ==
+ /| []
+`.replace(/\|/g, "\\");
 
 const program = new commander.Command();
 program
diff --git a/src/compiler/base.js b/src/compiler/base.js
index 9f63e41b..08cf7867 100644
--- a/src/compiler/base.js
+++ b/src/compiler/base.js
@@ -19,6 +19,4 @@ class BaseCompiler {
   }
 }
 var Base = BaseCompiler;
-try {
-  module.exports = Base;
-} catch (e) {}
+module.exports = BaseCompiler;
diff --git a/src/compiler/compilers.js b/src/compiler/compilers.js
index 1a2a6624..68fbab13 100644
--- a/src/compiler/compilers.js
+++ b/src/compiler/compilers.js
@@ -1,14 +1,11 @@
-try {
-  var JS = require("./js");
-  var PY = require("./py");
-  var RB = require("./rb");
-} catch (e) {}
+var JS = require("./js");
+var PY = require("./py");
+var RB = require("./rb");
 const compilers = {
   js: JS,
   py: PY,
   rb: RB
 };
 
-try {
-  module.exports = compilers;
-} catch (e) {}
+module.exports = compilers;
+
diff --git a/src/compiler/js.js b/src/compiler/js.js
index 8516403a..0c821839 100644
--- a/src/compiler/js.js
+++ b/src/compiler/js.js
@@ -1,6 +1,5 @@
-try {
-  var Base = require("./base");
-} catch (e) {}
+var Base = require("./base");
+
 class JSCompiler extends Base {
   compile(options = {}) {
     var imports = options.imports || [];
@@ -303,6 +302,5 @@ class JSCompiler extends Base {
   }
 }
 const JS = JSCompiler;
-try {
-  module.exports = JS;
-} catch (e) {}
+module.exports = JS;
+
diff --git a/src/compiler/py.js b/src/compiler/py.js
index f0f00a65..70024392 100644
--- a/src/compiler/py.js
+++ b/src/compiler/py.js
@@ -1,6 +1,5 @@
-try {
-  var Base = require("./base");
-} catch (e) {}
+var Base = require("./base");
+
 class PYCompiler extends Base {
   compile(options = {}) {
     var imports = options.imports || [];
@@ -331,6 +330,5 @@ class Ctnr():
 `;
 
 const PY = PYCompiler;
-try {
-  module.exports = PY;
-} catch (e) {}
+module.exports = PY;
+
diff --git a/src/compiler/rb.js b/src/compiler/rb.js
index 7ac361a1..a5cb2658 100644
--- a/src/compiler/rb.js
+++ b/src/compiler/rb.js
@@ -1,6 +1,5 @@
-try {
-  var Base = require("./base");
-} catch (e) {}
+var Base = require("./base");
+
 class RBCompiler extends Base {
   rename(name) {
     return name && `${name.toLowerCase()}`;
@@ -381,6 +380,5 @@ require 'forwardable'
 #####
 `;
 const RB = RBCompiler;
-try {
-  module.exports = RB;
-} catch (error) {}
+module.exports = RB;
+
diff --git a/src/hanzi2num.js b/src/hanzi2num.js
index d7622ebe..be13300e 100644
--- a/src/hanzi2num.js
+++ b/src/hanzi2num.js
@@ -258,6 +258,4 @@ function num2hanzi(n, nfrac = 6) {
   }
 }
 
-try {
-  module.exports = { hanzi2num, num2hanzi };
-} catch (e) {}
+module.exports = { hanzi2num, num2hanzi };
diff --git a/src/hanzi2pinyin.js b/src/hanzi2pinyin.js
index 2b159fe5..c6166ef9 100644
--- a/src/hanzi2pinyin.js
+++ b/src/hanzi2pinyin.js
@@ -32806,6 +32806,4 @@ function hanzi2pinyin(a, system = "pinyin") {
   }
   return s;
 }
-try {
-  module.exports = hanzi2pinyin;
-} catch (e) {}
+module.exports = hanzi2pinyin;
diff --git a/src/highlight.js b/src/highlight.js
index 7eadca56..8ca9c949 100644
--- a/src/highlight.js
+++ b/src/highlight.js
@@ -1,7 +1,5 @@
-try {
-  var { num2hanzi } = require("./hanzi2num");
-  var { NUMBER_KEYWORDS, KEYWORDS } = require("./keywords");
-} catch (e) {}
+var { num2hanzi } = require("./hanzi2num");
+var { NUMBER_KEYWORDS, KEYWORDS } = require("./keywords");
 
 var DEFAULT_COLORS = {
   ctrl: "#F92672",
diff --git a/src/keywords.js b/src/keywords.js
index 9e20a53d..d7e1756f 100644
--- a/src/keywords.js
+++ b/src/keywords.js
@@ -112,6 +112,4 @@ if (!Object.fromEntries) {
 }
 var KEYWORDS = Object.fromEntries(ke);
 
-try {
-  module.exports = { NUMBER_KEYWORDS, KEYWORDS };
-} catch (e) {}
+module.exports = { NUMBER_KEYWORDS, KEYWORDS };
diff --git a/src/parser.js b/src/parser.js
index 0ca2399a..ed7ad1ae 100644
--- a/src/parser.js
+++ b/src/parser.js
@@ -1,11 +1,9 @@
-try {
-  var { hanzi2num, num2hanzi } = require("./hanzi2num");
-  var hanzi2pinyin = require("./hanzi2pinyin");
-  var STDLIB = require("./stdlib");
-  var { NUMBER_KEYWORDS, KEYWORDS } = require("./keywords");
-  var version = require("./version");
-  var compilers = require("./compiler/compilers");
-} catch (e) {}
+var { hanzi2num, num2hanzi } = require("./hanzi2num");
+var hanzi2pinyin = require("./hanzi2pinyin");
+var STDLIB = require("./stdlib");
+var { NUMBER_KEYWORDS, KEYWORDS } = require("./keywords");
+var version = require("./version");
+var compilers = require("./compiler/compilers");
 
 function wy2tokens(txt) {
   var tokens = [];
@@ -714,6 +712,10 @@ function compile(
   return targ;
 }
 
+if (typeof version === 'undefined') {
+  let version = 'web-unknown';
+}
+
 var parser = {
   compile,
   version,
@@ -726,6 +728,4 @@ var parser = {
   NUMBER_KEYWORDS,
   STDLIB
 };
-try {
-  module.exports = parser;
-} catch (e) {}
+module.exports = parser;
diff --git a/src/render.js b/src/render.js
index 3afc4355..41ce3e4b 100644
--- a/src/render.js
+++ b/src/render.js
@@ -1,9 +1,7 @@
-try {
-  var fs = require("fs");
-  var { semantic } = require("./highlight");
-  var { num2hanzi } = require("./hanzi2num");
-  var parser = require("./parser");
-} catch (e) {}
+var fs = require("fs");
+var { semantic } = require("./highlight");
+var { num2hanzi } = require("./hanzi2num");
+var parser = require("./parser");
 
 const FONT = "'I.Ming', 'Source Han Serif KR', 'Noto Serif CJK KR', serif"; //"Source Han Serif TC"
 const RED = "#E53";
diff --git a/src/stdlib.js b/src/stdlib.js
index 48c71e4b..58282f33 100644
--- a/src/stdlib.js
+++ b/src/stdlib.js
@@ -1,22 +1,22 @@
-try {
-  function loadStdlib() {
-    const STDLIB = {};
+function loadStdlib() {
+  const STDLIB = {};
 
-    const raw = require.context("../lib", true, /.*\.wy$/);
+  const raw = require.context("../lib", true, /.*\.wy$/);
 
-    raw.keys().forEach(key => {
-      const parts = key.slice(2, -3).split("/");
-      const data = raw(key).default;
-      let lib = STDLIB;
-      for (const part of parts.slice(0, -1)) {
-        if (!lib[part]) lib[part] = {};
-        lib = lib[part];
-      }
-      lib[parts[parts.length - 1]] = data;
-    });
+  raw.keys().forEach(key => {
+    const parts = key.slice(2, -3).split("/");
+    const data = raw(key).default;
+    let lib = STDLIB;
+    for (const part of parts.slice(0, -1)) {
+      if (!lib[part]) lib[part] = {};
+      lib = lib[part];
+    }
+    lib[parts[parts.length - 1]] = data;
+  });
 
-    return STDLIB;
-  }
+  return STDLIB;
+}
 
+try {
   module.exports = loadStdlib();
 } catch (e) {}
diff --git a/src/version.js b/src/version.js
index f7edb383..da68ce2c 100644
--- a/src/version.js
+++ b/src/version.js
@@ -1,5 +1,8 @@
 try {
-  const package = require("../package.json");
+  var package = require("../package.json");
+} catch (e) {
+  var package = { version: 'Unknown' };
+}
+
+module.exports = package.version;
 
-  module.exports = package.version;
-} catch (e) {}
diff --git a/test/.eslintrc.json b/test/.eslintrc.json
new file mode 100644
index 00000000..6bb730d9
--- /dev/null
+++ b/test/.eslintrc.json
@@ -0,0 +1,7 @@
+{
+  "env": {
+    "mocha": true,
+    "node": true,
+    "es6": true
+  }
+}
diff --git a/tools/make_ide.js b/tools/make_ide.js
index cebd710c..4d4f4433 100644
--- a/tools/make_ide.js
+++ b/tools/make_ide.js
@@ -1,6 +1,4 @@
-try {
-  process.chdir("./tools");
-} catch (e) {} //make sure we're in tools directory
+process.chdir(__dirname); //make sure we're in tools directory
 
 var fs = require("fs");
 var execSync = require("child_process").execSync;
diff --git a/tools/make_site.js b/tools/make_site.js
index c5f13257..03cad705 100644
--- a/tools/make_site.js
+++ b/tools/make_site.js
@@ -1,6 +1,4 @@
-try {
-  process.chdir("./tools");
-} catch (e) {} //make sure we're in tools directory
+process.chdir(__dirname); //make sure we're in tools directory
 
 const fs = require("fs");
 const utils = require("./utils");
@@ -148,7 +146,7 @@ pre{
 #bg{
   width: 100%;
   height: 400px;
-  // overflow: scroll;
+  /*overflow: scroll;*/
   overflow: hidden;
   position: absolute;
   left: 0px;
diff --git a/tools/test_parser.js b/tools/test_parser.js
index d023934c..164639d9 100644
--- a/tools/test_parser.js
+++ b/tools/test_parser.js
@@ -1,6 +1,4 @@
-try {
-  process.chdir("./tools");
-} catch (e) {}
+process.chdir(__dirname); //make sure we're in tools directory
 
 var fs = require("fs");
 var parser = require("../src/parser");
diff --git a/tools/utils.js b/tools/utils.js
index 2e37f066..f4a7fd7f 100644
--- a/tools/utils.js
+++ b/tools/utils.js
@@ -10,7 +10,11 @@ function remotelib(urls) {
 }
 
 function catsrc() {
-  var s = "";
+  var s = `
+  ;
+  if (typeof require !== 'function') { require = function() { return undefined; } }
+  if (typeof module !== 'object') { module = {} }
+  ;`;
   var rootPath = "../src/";
   var compilerPath = "../src/compiler/";
   var compilerList = ["base", "js", "py", "rb", "compilers"];
@@ -20,13 +24,16 @@ function catsrc() {
   var srcs = fs.readdirSync(rootPath).map(filename => rootPath + filename);
   srcs = srcs.concat(compilerList);
 
+  // "Pacify" the source: don't require anything and don't exclusively declare anything
   for (var i = 0; i < srcs.length; i++) {
     if (srcs[i].endsWith(".js") && !srcs[i].includes("cli")) {
       s +=
         fs
           .readFileSync(srcs[i])
           .toString()
-          .replace(/const\s/g, "var ") + ";\n";
+          .replace(/(const|let)\s/g, "var ")
+          .replace(/^\s*var\s([{},\s\w]+)\s=\srequire(\("[^"]+"\));?$/gm, "/* $1 = REQ $2 */;");
+      s += ";\n";
     }
   }
   return s;
diff --git a/webpack.config.js b/webpack.config.js
index 964abed1..2b6fb4c6 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -5,7 +5,7 @@ const Default = () => {
   return {
     devtool: 'source-map',
     output: {
-      globalObject: '(typeof self !== "undefined" ? self : this)', // make it works for both node and browser
+      globalObject: 'globalThis', // make it works for both node and browser
       libraryTarget: 'umd2',
       library: ["Wenyan", "[name]"],
       path: path.resolve(__dirname, 'dist'),
@@ -59,4 +59,4 @@ const Utils = {
   }
 }
 
-module.exports = [Cli, Core, Utils]
\ No newline at end of file
+module.exports = [Cli, Core, Utils]