diff --git a/LICENSE b/LICENSE
index a4c8218..9aed3ae 100644
--- a/LICENSE
+++ b/LICENSE
@@ -186,7 +186,7 @@
       same "printed page" as the copyright notice for easier
       identification within third-party archives.
 
-   Copyright 2019-2021 InSysBio LLC
+   Copyright 2023-2024 InSysBio CY Ltd
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
diff --git a/package-lock.json b/package-lock.json
index 6407f15..b8f07fc 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -6,11 +6,11 @@
   "packages": {
     "": {
       "name": "heta-online",
-      "version": "0.1.10",
+      "version": "0.1.11",
       "license": "Apache-2.0",
       "dependencies": {
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-        "heta-compiler": "^0.9.0",
+        "heta-compiler": "^0.9.2",
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         "js-yaml": "^4.1.0",
         "jszip": "^3.10.1",
@@ -7355,29 +7355,29 @@
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         "ajv-errors": "^3.0.0",
         "colors": "^1.4.0",
-        "commander": "^11.1.0",
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+        "fs-extra": "^11.2.0",
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         "lodash": "^4.17.21",
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-        "semver": "^7.5.4",
-        "xlsx": "https://cdn.sheetjs.com/xlsx-0.20.0/xlsx-0.20.0.tgz",
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       },
       "bin": {
@@ -7398,11 +7398,11 @@
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-        "node": ">=16"
+        "node": ">=18"
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     },
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@@ -8685,11 +8685,11 @@
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+      "resolved": "https://registry.npmjs.org/markdown-it/-/markdown-it-14.1.0.tgz",
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-        "linkify-it": "^4.0.1",
-        "mdurl": "^1.0.1",
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@@ -11639,6 +11641,14 @@
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@@ -21589,29 +21597,29 @@
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+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/uc.micro/-/uc.micro-2.1.0.tgz",
+      "integrity": "sha512-ARDJmphmdvUk6Glw7y9DQ2bFkKBHwQHLi2lsaH6PPmz/Ka9sFOBsBluozhDltWmnv9u/cF6Rt87znRTPV+yp/A=="
     },
     "unicode-canonical-property-names-ecmascript": {
       "version": "2.0.0",
@@ -27135,8 +27147,8 @@
       "requires": {}
     },
     "xlsx": {
-      "version": "https://cdn.sheetjs.com/xlsx-0.20.0/xlsx-0.20.0.tgz",
-      "integrity": "sha512-adg5edVTkXXGTnb0iWrc3Z47ViGgwmD47yx6VfSCZhfdKPtHcElYGs48OtcO4nwOu90Pjz5mmyl0HLcvbSRYTQ=="
+      "version": "https://cdn.sheetjs.com/xlsx-0.20.2/xlsx-0.20.2.tgz",
+      "integrity": "sha512-+nKZ39+nvK7Qq6i0PvWWRA4j/EkfWOtkP/YhMtupm+lJIiHxUrgTr1CcKv1nBk1rHtkRRQ3O2+Ih/q/sA+FXZA=="
     },
     "xml-js": {
       "version": "1.6.11",
@@ -27155,7 +27167,8 @@
     "yallist": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz",
-      "integrity": "sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A=="
+      "integrity": "sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==",
+      "dev": true
     },
     "yaml": {
       "version": "1.10.2",
diff --git a/package.json b/package.json
index 85263fb..fa6d5cc 100644
--- a/package.json
+++ b/package.json
@@ -47,7 +47,7 @@
   },
   "dependencies": {
     "@viz-js/viz": "^3.2.3",
-    "heta-compiler": "^0.9.0",
+    "heta-compiler": "^0.9.2",
     "jquery": "^3.7.0",
     "js-yaml": "^4.1.0",
     "jszip": "^3.10.1",
diff --git a/src/build.js b/src/build.js
index eb66ece..bb9af2b 100644
--- a/src/build.js
+++ b/src/build.js
@@ -15,7 +15,7 @@ const levels = [
     'info', // 1
     'warn', // 2
     'error', // 3
-    'panic' // 4
+    'crit' // 4
 ];
 
 self.onmessage = (evt) => {
@@ -53,9 +53,13 @@ self.onmessage = (evt) => {
 };
 
 function main(inputDict, outputDict) {
-    let declaration = {options: {}, importModule: {}, export: []}; // default declaration
+    // set minimal log level
+    let logLevel = 'info';
+
+    // 0. empty declaration
+    let declaration = {options: {}, importModule: {}, export: []};
     
-    // === read declaration file ===
+    // 1. declaration from file
     // search
     let declarationFileName = ['platform.json', 'platform.yml', 'platform'].find((x) => inputDict[x]);
     let declarationBuffer = inputDict[declarationFileName];
@@ -78,15 +82,18 @@ function main(inputDict, outputDict) {
         }
     }
 
-    let minLogLevel = declaration?.options?.logLevel || 'info'; // set logLevel before declaration check
-    let minLevelNum = levels.indexOf(minLogLevel);
+    // specific transport function to output to console
+    let minLevelNum = levels.indexOf(logLevel);
     let tr1 = (level, msg, opt, levelNum) => {
         let value = `[${level}]\t${msg}\n`;
         if (levelNum >= minLevelNum) {
             postMessage({action: 'console', value: value});
         }
     }
+
+    // 2. no other source in declaration
     
+    // 3. run builder (set declaration defaults internally)
     var builder = new Builder(declaration, '.', (fn) => {
         
         let arrayBuffer = inputDict[fn]; // Uint8Array
diff --git a/src/heta-templates/platform.yml.template.js b/src/heta-templates/platform.yml.template.js
index 18ea28b..1bad09b 100644
--- a/src/heta-templates/platform.yml.template.js
+++ b/src/heta-templates/platform.yml.template.js
@@ -10,7 +10,6 @@ export default `{
   options: {
     debug: false,
     logPath: output.log,
-    logLevel: info,
     unitsCheck: false
   },
   importModule: {