diff --git a/apps/remix-ide/src/app.js b/apps/remix-ide/src/app.js
index 6f4a98e363..75870cef25 100644
--- a/apps/remix-ide/src/app.js
+++ b/apps/remix-ide/src/app.js
@@ -22,7 +22,7 @@ import {WalkthroughService} from './walkthroughService'
 
 import {OffsetToLineColumnConverter, CompilerMetadata, CompilerArtefacts, FetchAndCompile, CompilerImports, GistHandler} from '@remix-project/core-plugin'
 
-import Registry from './app/state/registry'
+import {Registry} from '@remix-project/remix-lib'
 import {ConfigPlugin} from './app/plugins/config'
 import {StoragePlugin} from './app/plugins/storage'
 import {Layout} from './app/panels/layout'
diff --git a/apps/remix-ide/src/app/files/dgitProvider.ts b/apps/remix-ide/src/app/files/dgitProvider.ts
index 889aef6c4e..a271c48436 100644
--- a/apps/remix-ide/src/app/files/dgitProvider.ts
+++ b/apps/remix-ide/src/app/files/dgitProvider.ts
@@ -14,7 +14,7 @@ import JSZip from 'jszip'
 import path from 'path'
 import FormData from 'form-data'
 import axios from 'axios'
-import Registry from '../state/registry'
+import {Registry} from '@remix-project/remix-lib'
 
 const profile = {
   name: 'dGitProvider',
diff --git a/apps/remix-ide/src/app/files/fileManager.ts b/apps/remix-ide/src/app/files/fileManager.ts
index 9ddac154d0..cb77a5c856 100644
--- a/apps/remix-ide/src/app/files/fileManager.ts
+++ b/apps/remix-ide/src/app/files/fileManager.ts
@@ -4,7 +4,7 @@ import { saveAs } from 'file-saver'
 import JSZip from 'jszip'
 import { Plugin } from '@remixproject/engine'
 import * as packageJson from '../../../../../package.json'
-import Registry from '../state/registry'
+import {Registry} from '@remix-project/remix-lib'
 import { EventEmitter } from 'events'
 import { fileChangedToastMsg, recursivePasteToastMsg, storageFullMessage } from '@remix-ui/helper'
 import helper from '../../lib/helper.js'
diff --git a/apps/remix-ide/src/app/panels/file-panel.js b/apps/remix-ide/src/app/panels/file-panel.js
index f7f9aa1da2..247a1ed57f 100644
--- a/apps/remix-ide/src/app/panels/file-panel.js
+++ b/apps/remix-ide/src/app/panels/file-panel.js
@@ -3,7 +3,7 @@ import { ViewPlugin } from '@remixproject/engine-web'
 import * as packageJson from '../../../../../package.json'
 import React from 'react' // eslint-disable-line
 import { FileSystemProvider } from '@remix-ui/workspace' // eslint-disable-line
-import Registry from '../state/registry'
+import {Registry} from '@remix-project/remix-lib'
 import { RemixdHandle } from '../plugins/remixd-handle'
 const { HardhatHandle } = require('../files/hardhat-handle.js')
 const { FoundryHandle } = require('../files/foundry-handle.js')
diff --git a/apps/remix-ide/src/app/panels/terminal.js b/apps/remix-ide/src/app/panels/terminal.js
index c786fbef24..5ad90adf00 100644
--- a/apps/remix-ide/src/app/panels/terminal.js
+++ b/apps/remix-ide/src/app/panels/terminal.js
@@ -3,7 +3,7 @@ import React from 'react' // eslint-disable-line
 import { RemixUiTerminal } from '@remix-ui/terminal' // eslint-disable-line
 import { Plugin } from '@remixproject/engine'
 import * as packageJson from '../../../../../package.json'
-import Registry from '../state/registry'
+import {Registry} from '@remix-project/remix-lib'
 import { PluginViewWrapper } from '@remix-ui/helper'
 import vm from 'vm'
 const EventManager = require('../../lib/events')
diff --git a/apps/remix-ide/src/app/plugins/config.ts b/apps/remix-ide/src/app/plugins/config.ts
index b4ff5fe30b..c979fab743 100644
--- a/apps/remix-ide/src/app/plugins/config.ts
+++ b/apps/remix-ide/src/app/plugins/config.ts
@@ -1,6 +1,6 @@
 import { Plugin } from '@remixproject/engine'
 import { QueryParams } from '@remix-project/remix-lib'
-import Registry from '../state/registry'
+import {Registry} from '@remix-project/remix-lib'
 
 const profile = {
   name: 'config',
diff --git a/apps/remix-ide/src/app/plugins/parser/services/code-parser-antlr-service.ts b/apps/remix-ide/src/app/plugins/parser/services/code-parser-antlr-service.ts
index 636614eed9..2da19bdaa6 100644
--- a/apps/remix-ide/src/app/plugins/parser/services/code-parser-antlr-service.ts
+++ b/apps/remix-ide/src/app/plugins/parser/services/code-parser-antlr-service.ts
@@ -4,7 +4,7 @@ import { AstNode } from "@remix-project/remix-solidity"
 import { CodeParser } from "../code-parser"
 import { antlr } from '../types'
 import { pathToFileURL } from 'url'
-import Registry from "../../../state/registry"
+import {Registry} from '@remix-project/remix-lib'
 
 const SolidityParser = (window as any).SolidityParser = (window as any).SolidityParser || []
 
diff --git a/apps/remix-ide/src/app/plugins/parser/services/code-parser-imports.ts b/apps/remix-ide/src/app/plugins/parser/services/code-parser-imports.ts
index 8d23a608ab..a54fc2a382 100644
--- a/apps/remix-ide/src/app/plugins/parser/services/code-parser-imports.ts
+++ b/apps/remix-ide/src/app/plugins/parser/services/code-parser-imports.ts
@@ -1,5 +1,5 @@
 'use strict'
-import Registry from "../../../state/registry";
+import {Registry} from '@remix-project/remix-lib'
 import { CodeParser } from "../code-parser";
 
 export type CodeParserImportsData = {
diff --git a/apps/remix-ide/src/app/plugins/remixd-handle.tsx b/apps/remix-ide/src/app/plugins/remixd-handle.tsx
index a082e2968b..b31e8f6208 100644
--- a/apps/remix-ide/src/app/plugins/remixd-handle.tsx
+++ b/apps/remix-ide/src/app/plugins/remixd-handle.tsx
@@ -6,7 +6,7 @@ import * as packageJson from '../../../../../package.json'
 import {version as remixdVersion} from '../../../../../libs/remixd/package.json'
 import {PluginManager} from '@remixproject/engine'
 import {AppModal, AlertModal, appPlatformTypes} from '@remix-ui/app'
-import Registry from '../state/registry'
+import {Registry} from '@remix-project/remix-lib'
 
 const LOCALHOST = ' - connect to localhost - '
 
@@ -112,7 +112,7 @@ export class RemixdHandle extends WebsocketPlugin {
     }
     if (this.localhostProvider.isConnected()) {
       this.deactivate()
-    } else if (!(Registry.getInstance().get('platform').api.isDektop())) {
+    } else if (!(Registry.getInstance().get('platform').api.isDesktop())) {
       // warn the user only if he/she is in the browser context
       const mod: AppModal = {
         id: 'remixdConnect',
diff --git a/apps/remix-ide/src/app/tabs/analysis-tab.js b/apps/remix-ide/src/app/tabs/analysis-tab.js
index 9a57c16516..77080b1770 100644
--- a/apps/remix-ide/src/app/tabs/analysis-tab.js
+++ b/apps/remix-ide/src/app/tabs/analysis-tab.js
@@ -3,7 +3,7 @@ import { ViewPlugin } from '@remixproject/engine-web'
 import { EventEmitter } from 'events'
 import {RemixUiStaticAnalyser} from '@remix-ui/static-analyser' // eslint-disable-line
 import * as packageJson from '../../../../../package.json'
-import Registry from '../state/registry'
+import {Registry} from '@remix-project/remix-lib'
 import { PluginViewWrapper } from '@remix-ui/helper'
 
 var EventManager = require('../../lib/events')
diff --git a/apps/remix-ide/src/app/tabs/locale-module.js b/apps/remix-ide/src/app/tabs/locale-module.js
index ad9b3c641f..89febee68d 100644
--- a/apps/remix-ide/src/app/tabs/locale-module.js
+++ b/apps/remix-ide/src/app/tabs/locale-module.js
@@ -2,7 +2,7 @@ import { Plugin } from '@remixproject/engine'
 import { EventEmitter } from 'events'
 import { QueryParams } from '@remix-project/remix-lib'
 import * as packageJson from '../../../../../package.json'
-import Registry from '../state/registry'
+import {Registry} from '@remix-project/remix-lib'
 import enJson from './locales/en'
 import zhJson from './locales/zh'
 import esJson from './locales/es'
diff --git a/apps/remix-ide/src/app/tabs/settings-tab.tsx b/apps/remix-ide/src/app/tabs/settings-tab.tsx
index cfc168054a..8eeea2b0fb 100644
--- a/apps/remix-ide/src/app/tabs/settings-tab.tsx
+++ b/apps/remix-ide/src/app/tabs/settings-tab.tsx
@@ -3,7 +3,7 @@ import React from 'react' // eslint-disable-line
 import {ViewPlugin} from '@remixproject/engine-web'
 import * as packageJson from '../../../../../package.json'
 import {RemixUiSettings} from '@remix-ui/settings' //eslint-disable-line
-import Registry from '../state/registry'
+import {Registry} from '@remix-project/remix-lib'
 import {PluginViewWrapper} from '@remix-ui/helper'
 
 const profile = {
diff --git a/apps/remix-ide/src/app/tabs/theme-module.js b/apps/remix-ide/src/app/tabs/theme-module.js
index b748376ec2..96cfef7bcd 100644
--- a/apps/remix-ide/src/app/tabs/theme-module.js
+++ b/apps/remix-ide/src/app/tabs/theme-module.js
@@ -2,7 +2,7 @@ import { Plugin } from '@remixproject/engine'
 import { EventEmitter } from 'events'
 import { QueryParams } from '@remix-project/remix-lib'
 import * as packageJson from '../../../../../package.json'
-import Registry from '../state/registry'
+import {Registry} from '@remix-project/remix-lib'
 const isElectron = require('is-electron')
 const _paq = window._paq = window._paq || []
 
diff --git a/apps/remix-ide/src/app/udapp/make-udapp.js b/apps/remix-ide/src/app/udapp/make-udapp.js
index f2980e0263..da76944ce9 100644
--- a/apps/remix-ide/src/app/udapp/make-udapp.js
+++ b/apps/remix-ide/src/app/udapp/make-udapp.js
@@ -1,4 +1,4 @@
-import Registry from '../state/registry'
+import {Registry} from '@remix-project/remix-lib'
 
 var remixLib = require('@remix-project/remix-lib')
 var EventsDecoder = remixLib.execution.EventsDecoder
diff --git a/apps/remix-ide/src/index.tsx b/apps/remix-ide/src/index.tsx
index 94d143eb1e..1733f93ec2 100644
--- a/apps/remix-ide/src/index.tsx
+++ b/apps/remix-ide/src/index.tsx
@@ -5,7 +5,7 @@ import './index.css'
 import {ThemeModule} from './app/tabs/theme-module'
 import {Preload} from './app/components/preload'
 import Config from './config'
-import Registry from './app/state/registry'
+import {Registry} from '@remix-project/remix-lib'
 import {Storage} from '@remix-project/remix-lib'
 ;(async function () {
   try {
diff --git a/apps/remix-ide/src/remixAppManager.js b/apps/remix-ide/src/remixAppManager.js
index 61178b1207..6dd9e9428a 100644
--- a/apps/remix-ide/src/remixAppManager.js
+++ b/apps/remix-ide/src/remixAppManager.js
@@ -2,7 +2,7 @@ import {PluginManager} from '@remixproject/engine'
 import {EventEmitter} from 'events'
 import {QueryParams} from '@remix-project/remix-lib'
 import {IframePlugin} from '@remixproject/engine-web'
-import Registry from './app/state/registry'
+import {Registry} from '@remix-project/remix-lib'
 
 const _paq = (window._paq = window._paq || [])
 
diff --git a/libs/remix-lib/src/execution/txRunnerWeb3.ts b/libs/remix-lib/src/execution/txRunnerWeb3.ts
index 914c40fa52..a7f1cce7ac 100644
--- a/libs/remix-lib/src/execution/txRunnerWeb3.ts
+++ b/libs/remix-lib/src/execution/txRunnerWeb3.ts
@@ -2,7 +2,7 @@
 import { EventManager } from '../eventManager'
 import type { Transaction as InternalTransaction } from './txRunner'
 import Web3 from 'web3'
-import {toBigInt} from 'web3-utils'
+import {toBigInt, toHex} from 'web3-utils'
 
 export class TxRunnerWeb3 {
   event
@@ -27,11 +27,11 @@ export class TxRunnerWeb3 {
     }
     if (txFee) {
       if (txFee.baseFeePerGas) {
-        tx.maxPriorityFeePerGas = this.getWeb3().utils.toHex(this.getWeb3().utils.toWei(txFee.maxPriorityFee, 'gwei'))
-        tx.maxFeePerGas = this.getWeb3().utils.toHex(this.getWeb3().utils.toWei(txFee.maxFee, 'gwei'))
+        tx.maxPriorityFeePerGas = toHex(BigInt(this.getWeb3().utils.toWei(txFee.maxPriorityFee, 'gwei')))
+        tx.maxFeePerGas = toHex(BigInt(this.getWeb3().utils.toWei(txFee.maxFee, 'gwei')))
         tx.type = '0x2'
       } else {
-        tx.gasPrice = this.getWeb3().utils.toHex(this.getWeb3().utils.toWei(txFee.gasPrice, 'gwei'))
+        tx.gasPrice = toHex(BigInt(this.getWeb3().utils.toWei(txFee.gasPrice, 'gwei')))
         tx.type = '0x1'
       }
     }
diff --git a/libs/remix-lib/src/index.ts b/libs/remix-lib/src/index.ts
index d3f28e470a..e92b00cab8 100644
--- a/libs/remix-lib/src/index.ts
+++ b/libs/remix-lib/src/index.ts
@@ -20,6 +20,7 @@ export { ConsoleLogs } from './helpers/hhconsoleSigs'
 export { ICompilerApi, ConfigurationSettings } from './types/ICompilerApi'
 export { QueryParams } from './query-params'
 export { VMexecutionResult } from './execution/txRunnerVM'
+export { Registry } from './registry'
 
 const helpers = {
   ui: uiHelper,
diff --git a/apps/remix-ide/src/app/state/registry.ts b/libs/remix-lib/src/registry.ts
similarity index 95%
rename from apps/remix-ide/src/app/state/registry.ts
rename to libs/remix-lib/src/registry.ts
index 7cf378db29..a43d16b526 100644
--- a/apps/remix-ide/src/app/state/registry.ts
+++ b/libs/remix-lib/src/registry.ts
@@ -3,7 +3,7 @@ type registryEntry = {
     name: string
 }
 
-export default class Registry {
+export class Registry {
   private static instance: Registry;
   private state: any
 
diff --git a/libs/remix-simulator/src/methods/transactions.ts b/libs/remix-simulator/src/methods/transactions.ts
index bbec179438..088ad3bf8f 100644
--- a/libs/remix-simulator/src/methods/transactions.ts
+++ b/libs/remix-simulator/src/methods/transactions.ts
@@ -268,7 +268,7 @@ export class Transactions {
         blockHash: '0x' + txBlock.hash().toString('hex'),
         blockNumber: bigIntToHex(txBlock.header.number),
         from: receipt.from,
-        gas: toHex(receipt.gas),
+        gas: toHex(BigInt(receipt.gas)),
         chainId: '0xd05',
         // 'gasPrice': '2000000000000', // 0x123
         gasPrice: '0x4a817c800', // 20000000000
@@ -317,7 +317,7 @@ export class Transactions {
         blockHash: '0x' + txBlock.hash().toString('hex'),
         blockNumber: bigIntToHex(txBlock.header.number),
         from: receipt.from,
-        gas: toHex(receipt.gas),
+        gas: toHex(BigInt(receipt.gas)),
         chainId: '0xd05',
         // 'gasPrice': '2000000000000', // 0x123
         gasPrice: '0x4a817c800', // 20000000000
@@ -362,7 +362,7 @@ export class Transactions {
         blockHash: '0x' + txBlock.hash().toString('hex'),
         blockNumber: bigIntToHex(txBlock.header.number),
         from: receipt.from,
-        gas: toHex(receipt.gas),
+        gas: toHex(BigInt(receipt.gas)),
         // 'gasPrice': '2000000000000', // 0x123
         chainId: '0xd05',
         gasPrice: '0x4a817c800', // 20000000000
diff --git a/libs/remix-ui/search/src/lib/components/results/SearchHelper.ts b/libs/remix-ui/search/src/lib/components/results/SearchHelper.ts
index 09900607ef..c0355cbfca 100644
--- a/libs/remix-ui/search/src/lib/components/results/SearchHelper.ts
+++ b/libs/remix-ui/search/src/lib/components/results/SearchHelper.ts
@@ -1,6 +1,6 @@
 import { EOL } from 'os'
 import { SearchResultLineLine } from '../../types'
-import Registry from 'apps/remix-ide/src/app/state/registry'
+import {Registry} from '@remix-project/remix-lib'
 
 
 export const getDirectory = async (dir: string, plugin: any) => {
diff --git a/libs/remix-ui/static-analyser/src/staticanalyser.d.ts b/libs/remix-ui/static-analyser/src/staticanalyser.d.ts
index 91ab488009..df314ede72 100644
--- a/libs/remix-ui/static-analyser/src/staticanalyser.d.ts
+++ b/libs/remix-ui/static-analyser/src/staticanalyser.d.ts
@@ -2,7 +2,7 @@ import { CompilationResult, SourceWithTarget } from '@remixproject/plugin-api'
 
 import { ViewPlugin } from '@remixproject/engine-web';
 import { EventEmitter } from 'events';
-import Registry from '../state/registry';
+import {Registry} from '@remix-project/remix-lib';
 export declare class AnalysisTab extends ViewPlugin {
   event: EventManager;
   events: EventEmitter;
diff --git a/libs/remix-ui/terminal/src/lib/components/Context.tsx b/libs/remix-ui/terminal/src/lib/components/Context.tsx
index 12adc81886..197d022750 100644
--- a/libs/remix-ui/terminal/src/lib/components/Context.tsx
+++ b/libs/remix-ui/terminal/src/lib/components/Context.tsx
@@ -47,7 +47,7 @@ const Context = ({opts, provider}: {opts; provider: string}) => {
       <div>
         <span>
           <span className="remix_ui_terminal_tx">
-            [block:{block.toString()} txIndex:{i.toString()}]
+            [block:{block.toString()} txIndex:{i ? i.toString() : '-'}]
           </span>
           <div className="remix_ui_terminal_txItem">
             <span className="remix_ui_terminal_txItemTitle">from:</span> {from}
@@ -76,7 +76,7 @@ const Context = ({opts, provider}: {opts; provider: string}) => {
       <div>
         <span>
           <span className="remix_ui_terminal_tx">
-            [block:{block.toString()} txIndex:{i.toString()}]
+            [block:{block.toString()} txIndex:{i ? i.toString() : '-'}]
           </span>
           <div className="remix_ui_terminal_txItem">
             <span className="remix_ui_terminal_txItemTitle">from:</span> {from}
diff --git a/libs/remix-ui/workspace/src/lib/actions/index.ts b/libs/remix-ui/workspace/src/lib/actions/index.ts
index 635e5c371d..4ee4af4c0d 100644
--- a/libs/remix-ui/workspace/src/lib/actions/index.ts
+++ b/libs/remix-ui/workspace/src/lib/actions/index.ts
@@ -9,7 +9,7 @@ import { QueryParams } from '@remix-project/remix-lib'
 import { fetchContractFromEtherscan } from '@remix-project/core-plugin' // eslint-disable-line
 import JSZip from 'jszip'
 import { Actions, FileTree } from '../types'
-import Registry from 'apps/remix-ide/src/app/state/registry'
+import {Registry} from '@remix-project/remix-lib'
 
 export * from './events'
 export * from './workspace'
diff --git a/libs/remix-ui/workspace/src/lib/components/workspace-hamburger-item.tsx b/libs/remix-ui/workspace/src/lib/components/workspace-hamburger-item.tsx
index d66959a1bb..980c38652f 100644
--- a/libs/remix-ui/workspace/src/lib/components/workspace-hamburger-item.tsx
+++ b/libs/remix-ui/workspace/src/lib/components/workspace-hamburger-item.tsx
@@ -20,23 +20,23 @@ export function HamburgerMenuItem(props: HamburgerMenuItemProps) {
   return (
     <>
       {props.platforms.includes(platform)?(
-      <Dropdown.Item>
-        <CustomTooltip placement="right" tooltipId={uid + 'Tooltip'} tooltipClasses="text-nowrap" tooltipText={<FormattedMessage id={'filePanel.workspace.' + props.kind} />}>
-          <div
-            data-id={uid}
-            key={uid + '-fe-ws'}
-            onClick={() => {
-              props.actionOnClick()
-              _paq.push(['trackEvent', 'fileExplorer', 'workspaceMenu', uid])
-            }}
-          >
-            <span hidden={hideOption} id={uid} data-id={uid} className={props.fa + ' pl-2'} style={{width: '1.4rem'}}></span>
-            <span className="px-2">
-              <FormattedMessage id={'filePanel.' + props.kind} />
-            </span>
-          </div>
-        </CustomTooltip>
-      </Dropdown.Item>):null}
+        <Dropdown.Item>
+          <CustomTooltip placement="right" tooltipId={uid + 'Tooltip'} tooltipClasses="text-nowrap" tooltipText={<FormattedMessage id={'filePanel.workspace.' + props.kind} />}>
+            <div
+              data-id={uid}
+              key={uid + '-fe-ws'}
+              onClick={() => {
+                props.actionOnClick()
+                _paq.push(['trackEvent', 'fileExplorer', 'workspaceMenu', uid])
+              }}
+            >
+              <span hidden={hideOption} id={uid} data-id={uid} className={props.fa + ' pl-2'} style={{width: '1.4rem'}}></span>
+              <span className="px-2">
+                <FormattedMessage id={'filePanel.' + props.kind} />
+              </span>
+            </div>
+          </CustomTooltip>
+        </Dropdown.Item>):null}
     </>
   )
 }
diff --git a/libs/remix-ui/workspace/src/lib/components/workspace-hamburger.tsx b/libs/remix-ui/workspace/src/lib/components/workspace-hamburger.tsx
index 2d721559fd..5ee1eaddde 100644
--- a/libs/remix-ui/workspace/src/lib/components/workspace-hamburger.tsx
+++ b/libs/remix-ui/workspace/src/lib/components/workspace-hamburger.tsx
@@ -1,4 +1,4 @@
-import { appPlatformTypes } from 'libs/remix-ui/app/src/lib/remix-app/context/context'
+import { appPlatformTypes } from '@remix-ui/app'
 import React from 'react'
 import {Dropdown} from 'react-bootstrap'
 import {HamburgerMenuItem, HamburgerSubMenuItem} from './workspace-hamburger-item'