diff --git a/.vite/build/main.js b/.vite/build/main.js
index 1cbb0eb..f959cc5 100644
--- a/.vite/build/main.js
+++ b/.vite/build/main.js
@@ -1,5 +1,5 @@
-"use strict";const w=require("electron"),M=require("path"),P=require("child_process"),T=require("tty"),z=require("util"),F=require("fs"),G=require("net");var _={exports:{}},b={exports:{}},q={exports:{}},$,S;function I(){if(S)return $;S=1;var a=1e3,e=a*60,c=e*60,f=c*24,p=f*365.25;$=function(r,n){n=n||{};var s=typeof r;if(s==="string"&&r.length>0)return g(r);if(s==="number"&&isNaN(r)===!1)return n.long?v(r):h(r);throw new Error("val is not a non-empty string or a valid number. val="+JSON.stringify(r))};function g(r){if(r=String(r),!(r.length>100)){var n=/^((?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec(r);if(n){var s=parseFloat(n[1]),l=(n[2]||"ms").toLowerCase();switch(l){case"years":case"year":case"yrs":case"yr":case"y":return s*p;case"days":case"day":case"d":return s*f;case"hours":case"hour":case"hrs":case"hr":case"h":return s*c;case"minutes":case"minute":case"mins":case"min":case"m":return s*e;case"seconds":case"second":case"secs":case"sec":case"s":return s*a;case"milliseconds":case"millisecond":case"msecs":case"msec":case"ms":return s;default:return}}}}function h(r){return r>=f?Math.round(r/f)+"d":r>=c?Math.round(r/c)+"h":r>=e?Math.round(r/e)+"m":r>=a?Math.round(r/a)+"s":r+"ms"}function v(r){return i(r,f,"day")||i(r,c,"hour")||i(r,e,"minute")||i(r,a,"second")||r+" ms"}function i(r,n,s){if(!(r<n))return r<n*1.5?Math.floor(r/n)+" "+s:Math.ceil(r/n)+" "+s+"s"}return $}var A;function W(){return A||(A=1,function(a,e){e=a.exports=p.debug=p.default=p,e.coerce=i,e.disable=h,e.enable=g,e.enabled=v,e.humanize=I(),e.names=[],e.skips=[],e.formatters={};var c;function f(r){var n=0,s;for(s in r)n=(n<<5)-n+r.charCodeAt(s),n|=0;return e.colors[Math.abs(n)%e.colors.length]}function p(r){function n(){if(n.enabled){var s=n,l=+new Date,o=l-(c||l);s.diff=o,s.prev=c,s.curr=l,c=l;for(var t=new Array(arguments.length),d=0;d<t.length;d++)t[d]=arguments[d];t[0]=e.coerce(t[0]),typeof t[0]!="string"&&t.unshift("%O");var u=0;t[0]=t[0].replace(/%([a-zA-Z%])/g,function(y,j){if(y==="%%")return y;u++;var k=e.formatters[j];if(typeof k=="function"){var L=t[u];y=k.call(s,L),t.splice(u,1),u--}return y}),e.formatArgs.call(s,t);var m=n.log||e.log||console.log.bind(console);m.apply(s,t)}}return n.namespace=r,n.enabled=e.enabled(r),n.useColors=e.useColors(),n.color=f(r),typeof e.init=="function"&&e.init(n),n}function g(r){e.save(r),e.names=[],e.skips=[];for(var n=(typeof r=="string"?r:"").split(/[\s,]+/),s=n.length,l=0;l<s;l++)n[l]&&(r=n[l].replace(/\*/g,".*?"),r[0]==="-"?e.skips.push(new RegExp("^"+r.substr(1)+"$")):e.names.push(new RegExp("^"+r+"$")))}function h(){e.enable("")}function v(r){var n,s;for(n=0,s=e.skips.length;n<s;n++)if(e.skips[n].test(r))return!1;for(n=0,s=e.names.length;n<s;n++)if(e.names[n].test(r))return!0;return!1}function i(r){return r instanceof Error?r.stack||r.message:r}}(q,q.exports)),q.exports}var D;function J(){return D||(D=1,function(a,e){e=a.exports=W(),e.log=p,e.formatArgs=f,e.save=g,e.load=h,e.useColors=c,e.storage=typeof chrome<"u"&&typeof chrome.storage<"u"?chrome.storage.local:v(),e.colors=["lightseagreen","forestgreen","goldenrod","dodgerblue","darkorchid","crimson"];function c(){return typeof window<"u"&&window.process&&window.process.type==="renderer"?!0:typeof document<"u"&&document.documentElement&&document.documentElement.style&&document.documentElement.style.WebkitAppearance||typeof window<"u"&&window.console&&(window.console.firebug||window.console.exception&&window.console.table)||typeof navigator<"u"&&navigator.userAgent&&navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/)&&parseInt(RegExp.$1,10)>=31||typeof navigator<"u"&&navigator.userAgent&&navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/)}e.formatters.j=function(i){try{return JSON.stringify(i)}catch(r){return"[UnexpectedJSONParseError]: "+r.message}};function f(i){var r=this.useColors;if(i[0]=(r?"%c":"")+this.namespace+(r?" %c":" ")+i[0]+(r?"%c ":" ")+"+"+e.humanize(this.diff),!!r){var n="color: "+this.color;i.splice(1,0,n,"color: inherit");var s=0,l=0;i[0].replace(/%[a-zA-Z%]/g,function(o){o!=="%%"&&(s++,o==="%c"&&(l=s))}),i.splice(l,0,n)}}function p(){return typeof console=="object"&&console.log&&Function.prototype.apply.call(console.log,console,arguments)}function g(i){try{i==null?e.storage.removeItem("debug"):e.storage.debug=i}catch{}}function h(){var i;try{i=e.storage.debug}catch{}return!i&&typeof process<"u"&&"env"in process&&(i=process.env.DEBUG),i}e.enable(h());function v(){try{return window.localStorage}catch{}}}(b,b.exports)),b.exports}var C={exports:{}},U;function Z(){return U||(U=1,function(a,e){var c=T,f=z;e=a.exports=W(),e.init=l,e.log=i,e.formatArgs=v,e.save=r,e.load=n,e.useColors=h,e.colors=[6,2,3,4,5,1],e.inspectOpts=Object.keys(process.env).filter(function(o){return/^debug_/i.test(o)}).reduce(function(o,t){var d=t.substring(6).toLowerCase().replace(/_([a-z])/g,function(m,y){return y.toUpperCase()}),u=process.env[t];return/^(yes|on|true|enabled)$/i.test(u)?u=!0:/^(no|off|false|disabled)$/i.test(u)?u=!1:u==="null"?u=null:u=Number(u),o[d]=u,o},{});var p=parseInt(process.env.DEBUG_FD,10)||2;p!==1&&p!==2&&f.deprecate(function(){},"except for stderr(2) and stdout(1), any other usage of DEBUG_FD is deprecated. Override debug.log if you want to use a different log function (https://git.io/debug_fd)")();var g=p===1?process.stdout:p===2?process.stderr:s(p);function h(){return"colors"in e.inspectOpts?!!e.inspectOpts.colors:c.isatty(p)}e.formatters.o=function(o){return this.inspectOpts.colors=this.useColors,f.inspect(o,this.inspectOpts).split(`
-`).map(function(t){return t.trim()}).join(" ")},e.formatters.O=function(o){return this.inspectOpts.colors=this.useColors,f.inspect(o,this.inspectOpts)};function v(o){var t=this.namespace,d=this.useColors;if(d){var u=this.color,m="  \x1B[3"+u+";1m"+t+" \x1B[0m";o[0]=m+o[0].split(`
+"use strict";const h=require("electron"),P=require("path"),T=require("child_process"),z=require("tty"),G=require("util"),I=require("fs"),J=require("net");function Z(s){return s&&s.__esModule&&Object.prototype.hasOwnProperty.call(s,"default")?s.default:s}var O={exports:{}},b={exports:{}},q={exports:{}},_,A;function H(){if(A)return _;A=1;var s=1e3,e=s*60,u=e*60,c=u*24,f=c*365.25;_=function(r,n){n=n||{};var o=typeof r;if(o==="string"&&r.length>0)return v(r);if(o==="number"&&isNaN(r)===!1)return n.long?m(r):g(r);throw new Error("val is not a non-empty string or a valid number. val="+JSON.stringify(r))};function v(r){if(r=String(r),!(r.length>100)){var n=/^((?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/i.exec(r);if(n){var o=parseFloat(n[1]),d=(n[2]||"ms").toLowerCase();switch(d){case"years":case"year":case"yrs":case"yr":case"y":return o*f;case"days":case"day":case"d":return o*c;case"hours":case"hour":case"hrs":case"hr":case"h":return o*u;case"minutes":case"minute":case"mins":case"min":case"m":return o*e;case"seconds":case"second":case"secs":case"sec":case"s":return o*s;case"milliseconds":case"millisecond":case"msecs":case"msec":case"ms":return o;default:return}}}}function g(r){return r>=c?Math.round(r/c)+"d":r>=u?Math.round(r/u)+"h":r>=e?Math.round(r/e)+"m":r>=s?Math.round(r/s)+"s":r+"ms"}function m(r){return a(r,c,"day")||a(r,u,"hour")||a(r,e,"minute")||a(r,s,"second")||r+" ms"}function a(r,n,o){if(!(r<n))return r<n*1.5?Math.floor(r/n)+" "+o:Math.ceil(r/n)+" "+o+"s"}return _}var D;function R(){return D||(D=1,function(s,e){e=s.exports=f.debug=f.default=f,e.coerce=a,e.disable=g,e.enable=v,e.enabled=m,e.humanize=H(),e.names=[],e.skips=[],e.formatters={};var u;function c(r){var n=0,o;for(o in r)n=(n<<5)-n+r.charCodeAt(o),n|=0;return e.colors[Math.abs(n)%e.colors.length]}function f(r){function n(){if(n.enabled){var o=n,d=+new Date,i=d-(u||d);o.diff=i,o.prev=u,o.curr=d,u=d;for(var t=new Array(arguments.length),p=0;p<t.length;p++)t[p]=arguments[p];t[0]=e.coerce(t[0]),typeof t[0]!="string"&&t.unshift("%O");var l=0;t[0]=t[0].replace(/%([a-zA-Z%])/g,function(y,F){if(y==="%%")return y;l++;var k=e.formatters[F];if(typeof k=="function"){var L=t[l];y=k.call(o,L),t.splice(l,1),l--}return y}),e.formatArgs.call(o,t);var w=n.log||e.log||console.log.bind(console);w.apply(o,t)}}return n.namespace=r,n.enabled=e.enabled(r),n.useColors=e.useColors(),n.color=c(r),typeof e.init=="function"&&e.init(n),n}function v(r){e.save(r),e.names=[],e.skips=[];for(var n=(typeof r=="string"?r:"").split(/[\s,]+/),o=n.length,d=0;d<o;d++)n[d]&&(r=n[d].replace(/\*/g,".*?"),r[0]==="-"?e.skips.push(new RegExp("^"+r.substr(1)+"$")):e.names.push(new RegExp("^"+r+"$")))}function g(){e.enable("")}function m(r){var n,o;for(n=0,o=e.skips.length;n<o;n++)if(e.skips[n].test(r))return!1;for(n=0,o=e.names.length;n<o;n++)if(e.names[n].test(r))return!0;return!1}function a(r){return r instanceof Error?r.stack||r.message:r}}(q,q.exports)),q.exports}var M;function V(){return M||(M=1,function(s,e){e=s.exports=R(),e.log=f,e.formatArgs=c,e.save=v,e.load=g,e.useColors=u,e.storage=typeof chrome<"u"&&typeof chrome.storage<"u"?chrome.storage.local:m(),e.colors=["lightseagreen","forestgreen","goldenrod","dodgerblue","darkorchid","crimson"];function u(){return typeof window<"u"&&window.process&&window.process.type==="renderer"?!0:typeof document<"u"&&document.documentElement&&document.documentElement.style&&document.documentElement.style.WebkitAppearance||typeof window<"u"&&window.console&&(window.console.firebug||window.console.exception&&window.console.table)||typeof navigator<"u"&&navigator.userAgent&&navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/)&&parseInt(RegExp.$1,10)>=31||typeof navigator<"u"&&navigator.userAgent&&navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/)}e.formatters.j=function(a){try{return JSON.stringify(a)}catch(r){return"[UnexpectedJSONParseError]: "+r.message}};function c(a){var r=this.useColors;if(a[0]=(r?"%c":"")+this.namespace+(r?" %c":" ")+a[0]+(r?"%c ":" ")+"+"+e.humanize(this.diff),!!r){var n="color: "+this.color;a.splice(1,0,n,"color: inherit");var o=0,d=0;a[0].replace(/%[a-zA-Z%]/g,function(i){i!=="%%"&&(o++,i==="%c"&&(d=o))}),a.splice(d,0,n)}}function f(){return typeof console=="object"&&console.log&&Function.prototype.apply.call(console.log,console,arguments)}function v(a){try{a==null?e.storage.removeItem("debug"):e.storage.debug=a}catch{}}function g(){var a;try{a=e.storage.debug}catch{}return!a&&typeof process<"u"&&"env"in process&&(a=process.env.DEBUG),a}e.enable(g());function m(){try{return window.localStorage}catch{}}}(b,b.exports)),b.exports}var C={exports:{}},U;function Y(){return U||(U=1,function(s,e){var u=z,c=G;e=s.exports=R(),e.init=d,e.log=a,e.formatArgs=m,e.save=r,e.load=n,e.useColors=g,e.colors=[6,2,3,4,5,1],e.inspectOpts=Object.keys(process.env).filter(function(i){return/^debug_/i.test(i)}).reduce(function(i,t){var p=t.substring(6).toLowerCase().replace(/_([a-z])/g,function(w,y){return y.toUpperCase()}),l=process.env[t];return/^(yes|on|true|enabled)$/i.test(l)?l=!0:/^(no|off|false|disabled)$/i.test(l)?l=!1:l==="null"?l=null:l=Number(l),i[p]=l,i},{});var f=parseInt(process.env.DEBUG_FD,10)||2;f!==1&&f!==2&&c.deprecate(function(){},"except for stderr(2) and stdout(1), any other usage of DEBUG_FD is deprecated. Override debug.log if you want to use a different log function (https://git.io/debug_fd)")();var v=f===1?process.stdout:f===2?process.stderr:o(f);function g(){return"colors"in e.inspectOpts?!!e.inspectOpts.colors:u.isatty(f)}e.formatters.o=function(i){return this.inspectOpts.colors=this.useColors,c.inspect(i,this.inspectOpts).split(`
+`).map(function(t){return t.trim()}).join(" ")},e.formatters.O=function(i){return this.inspectOpts.colors=this.useColors,c.inspect(i,this.inspectOpts)};function m(i){var t=this.namespace,p=this.useColors;if(p){var l=this.color,w="  \x1B[3"+l+";1m"+t+" \x1B[0m";i[0]=w+i[0].split(`
 `).join(`
-`+m),o.push("\x1B[3"+u+"m+"+e.humanize(this.diff)+"\x1B[0m")}else o[0]=new Date().toUTCString()+" "+t+" "+o[0]}function i(){return g.write(f.format.apply(f,arguments)+`
-`)}function r(o){o==null?delete process.env.DEBUG:process.env.DEBUG=o}function n(){return process.env.DEBUG}function s(o){var t,d=process.binding("tty_wrap");switch(d.guessHandleType(o)){case"TTY":t=new c.WriteStream(o),t._type="tty",t._handle&&t._handle.unref&&t._handle.unref();break;case"FILE":var u=F;t=new u.SyncWriteStream(o,{autoClose:!1}),t._type="fs";break;case"PIPE":case"TCP":var m=G;t=new m.Socket({fd:o,readable:!1,writable:!0}),t.readable=!1,t.read=null,t._type="pipe",t._handle&&t._handle.unref&&t._handle.unref();break;default:throw new Error("Implement me. Unknown stream file type!")}return t.fd=o,t._isStdio=!0,t}function l(o){o.inspectOpts={};for(var t=Object.keys(e.inspectOpts),d=0;d<t.length;d++)o.inspectOpts[t[d]]=e.inspectOpts[t[d]]}e.enable(n())}(C,C.exports)),C.exports}typeof process<"u"&&process.type==="renderer"?_.exports=J():_.exports=Z();var H=_.exports,O=M,Y=P.spawn,N=H("electron-squirrel-startup"),E=w.app,B=function(a,e){var c=O.resolve(O.dirname(process.execPath),"..","Update.exe");N("Spawning `%s` with args `%s`",c,a),Y(c,a,{detached:!0}).on("close",e)},K=function(){if(process.platform==="win32"){var a=process.argv[1];N("processing squirrel command `%s`",a);var e=O.basename(process.execPath);if(a==="--squirrel-install"||a==="--squirrel-updated")return B(["--createShortcut="+e],E.quit),!0;if(a==="--squirrel-uninstall")return B(["--removeShortcut="+e],E.quit),!0;if(a==="--squirrel-obsolete")return E.quit(),!0}return!1};K();const R=()=>{const a=new w.BrowserWindow({width:800,height:600,webPreferences:{preload:M.join(__dirname,"preload.js")}});a.loadURL("http://localhost:5173"),a.webContents.openDevTools()};w.app.on("ready",R);w.app.on("window-all-closed",()=>{process.platform!=="darwin"&&w.app.quit()});w.app.on("activate",()=>{w.BrowserWindow.getAllWindows().length===0&&R()});
+`+w),i.push("\x1B[3"+l+"m+"+e.humanize(this.diff)+"\x1B[0m")}else i[0]=new Date().toUTCString()+" "+t+" "+i[0]}function a(){return v.write(c.format.apply(c,arguments)+`
+`)}function r(i){i==null?delete process.env.DEBUG:process.env.DEBUG=i}function n(){return process.env.DEBUG}function o(i){var t,p=process.binding("tty_wrap");switch(p.guessHandleType(i)){case"TTY":t=new u.WriteStream(i),t._type="tty",t._handle&&t._handle.unref&&t._handle.unref();break;case"FILE":var l=I;t=new l.SyncWriteStream(i,{autoClose:!1}),t._type="fs";break;case"PIPE":case"TCP":var w=J;t=new w.Socket({fd:i,readable:!1,writable:!0}),t.readable=!1,t.read=null,t._type="pipe",t._handle&&t._handle.unref&&t._handle.unref();break;default:throw new Error("Implement me. Unknown stream file type!")}return t.fd=i,t._isStdio=!0,t}function d(i){i.inspectOpts={};for(var t=Object.keys(e.inspectOpts),p=0;p<t.length;p++)i.inspectOpts[t[p]]=e.inspectOpts[t[p]]}e.enable(n())}(C,C.exports)),C.exports}typeof process<"u"&&process.type==="renderer"?O.exports=V():O.exports=Y();var K=O.exports,S=P,Q=T.spawn,W=K("electron-squirrel-startup"),$=h.app,j=function(s,e){var u=S.resolve(S.dirname(process.execPath),"..","Update.exe");W("Spawning `%s` with args `%s`",u,s),Q(u,s,{detached:!0}).on("close",e)},X=function(){if(process.platform==="win32"){var s=process.argv[1];W("processing squirrel command `%s`",s);var e=S.basename(process.execPath);if(s==="--squirrel-install"||s==="--squirrel-updated")return j(["--createShortcut="+e],$.quit),!0;if(s==="--squirrel-uninstall")return j(["--removeShortcut="+e],$.quit),!0;if(s==="--squirrel-obsolete")return $.quit(),!0}return!1},x=X();const ee=Z(x),E={list(){return[]},async connect(s){return!0},async disconnect(){return!0},onAttach(s){},onDetach(s){}},B={get(s,e,u){return new Promise((c,f)=>{c({pid:s,tid:e,vid:u,value:0})})},set(s,e,u,c){return new Promise((f,v)=>{f({pid:s,tid:e,vid:u,value:c})})},onValueReceived(s){}};ee&&h.app.quit();const N=()=>{const s=new h.BrowserWindow({width:1100,height:912,webPreferences:{preload:P.join(__dirname,"preload.js")}});return s.loadURL("http://localhost:5173"),s.webContents.openDevTools(),s};h.app.whenReady().then(()=>{h.ipcMain.handle("nanodevices:list",E.list),h.ipcMain.handle("nanodevices:connect",E.connect),h.ipcMain.handle("nanodevices:disconnect",E.disconnect),h.ipcMain.handle("nano:get",B.get),h.ipcMain.handle("nano:set",B.set),N()});h.app.on("window-all-closed",()=>{process.platform!=="darwin"&&h.app.quit()});h.app.on("activate",()=>{h.BrowserWindow.getAllWindows().length===0&&N()});
diff --git a/.vite/build/preload.js b/.vite/build/preload.js
index 3918c74..5be10d7 100644
--- a/.vite/build/preload.js
+++ b/.vite/build/preload.js
@@ -1 +1 @@
-"use strict";
+"use strict";const{contextBridge:i,ipcRenderer:o}=require("electron");i.exposeInMainWorld("nanodevices",{list(){o.invoke("nanodevices:list")},connect(e){o.invoke("nanodevices:connect",e)},disconnect(){o.invoke("nanodevices:disconnect")},on_device_attached(e){o.on("nanodevice-attached",(c,n)=>e(n))},on_device_detached(e){o.on("nanodevice-detached",(c,n)=>e(n))}});i.exposeInMainWorld("nanodevice",{get_value(e,c,n){o.invoke("nano:get",e,c,n)},set_value(e,c,n,t){o.invoke("nano:set",e,c,n,t)},on_value(e){o.on("nano-onvalue",(c,n)=>e(n))}});
diff --git a/src/backend/nano.js b/src/backend/nano.js
new file mode 100644
index 0000000..a7dc0a4
--- /dev/null
+++ b/src/backend/nano.js
@@ -0,0 +1,19 @@
+
+const nano = {
+    get(pid, tid, vid) {
+        return new Promise((resolve, reject) => {
+            resolve({ pid: pid, tid: tid, vid: vid, value: 0.0 });
+        });
+    },
+
+    set(pid, tid, vid, value) {
+        return new Promise((resolve, reject) => {
+            resolve({ pid: pid, tid: tid, vid: vid, value: value });
+        });
+    },
+
+    onValueReceived(listener) {
+    }
+};
+
+export default nano;
\ No newline at end of file
diff --git a/src/backend/nanodevices.js b/src/backend/nanodevices.js
new file mode 100644
index 0000000..f1266a2
--- /dev/null
+++ b/src/backend/nanodevices.js
@@ -0,0 +1,23 @@
+
+
+const nanodevices = {
+    list() {
+        return [];
+    },
+
+    async connect(devicename) {
+        return true;
+    },
+
+    async disconnect() {
+        return true;
+    },
+
+    onAttach(listener) {
+    },
+    
+    onDetach(listener) {
+    }
+};
+
+export default nanodevices;
diff --git a/src/main.js b/src/main.js
index 56ed0fb..5e12109 100644
--- a/src/main.js
+++ b/src/main.js
@@ -1,17 +1,21 @@
 import { app, BrowserWindow } from 'electron';
 import path from 'path';
-import 'electron-squirrel-startup';
+import ess from 'electron-squirrel-startup';
+import { ipcMain } from 'electron';
+import nanodevices from './backend/nanodevices.js';
+import nano from './backend/nano.js';
 
-// TODO Handle creating/removing shortcuts on Windows when installing/uninstalling.
-//if (require('electron-squirrel-startup')) {
-//  app.quit();
-//}
+
+// Handle creating/removing shortcuts on Windows when installing/uninstalling.
+if (ess) {
+  app.quit();
+}
 
 const createWindow = () => {
   // Create the browser window.
   const mainWindow = new BrowserWindow({
-    width: 800,
-    height: 600,
+    width: 1100,
+    height: 912,
     webPreferences: {
       preload: path.join(__dirname, 'preload.js'),
     },
@@ -26,12 +30,33 @@ const createWindow = () => {
 
   // Open the DevTools.
   mainWindow.webContents.openDevTools();
+
+  return mainWindow;
 };
 
 // This method will be called when Electron has finished
 // initialization and is ready to create browser windows.
 // Some APIs can only be used after this event occurs.
-app.on('ready', createWindow);
+app.whenReady().then(() => {
+  ipcMain.handle('nanodevices:list', nanodevices.list);
+  ipcMain.handle('nanodevices:connect', nanodevices.connect);
+  ipcMain.handle('nanodevices:disconnect', nanodevices.disconnect);
+  ipcMain.handle('nano:get', nano.get);
+  ipcMain.handle('nano:set', nano.set);
+  const mainWindow = createWindow();
+  nanodevices.onAttach((device) => {
+    console.log("Attached device", device);
+    mainWindow.webContents.send('nanodevice-attached', device);
+  });
+  nanodevices.onDetach((device) => {
+    console.log("Detached device", device);
+    mainWindow.webContents.send('nanodevice-detached', device);
+  });
+  nano.onValueReceived((value) => {
+    console.log("Value received", value);
+    mainWindow.webContents.send('nano-onvalue', value);
+  });
+});
 
 // Quit when all windows are closed, except on macOS. There, it's common
 // for applications and their menu bar to stay active until the user quits
diff --git a/src/preload.js b/src/preload.js
index 5e9d369..a1566f8 100644
--- a/src/preload.js
+++ b/src/preload.js
@@ -1,2 +1,22 @@
 // See the Electron documentation for details on how to use preload scripts:
 // https://www.electronjs.org/docs/latest/tutorial/process-model#preload-scripts
+
+const { contextBridge, ipcRenderer } = require('electron')
+
+
+// expose an API to choose available devices
+contextBridge.exposeInMainWorld('nanodevices', {
+    list() { ipcRenderer.invoke('nanodevices:list'); },
+    connect(devicename) { ipcRenderer.invoke('nanodevices:connect', devicename); },
+    disconnect() { ipcRenderer.invoke('nanodevices:disconnect'); },
+    on_device_attached(listener) { ipcRenderer.on('nanodevice-attached', (_event, value) => listener(value)); },
+    on_device_detached(listener) { ipcRenderer.on('nanodevice-detached', (_event, value) => listener(value)); },
+});
+
+
+// expose an API to communicate with the nano device
+contextBridge.exposeInMainWorld('nanodevice', {
+    get_value(pid, tid, vid){ ipcRenderer.invoke('nano:get', pid, tid, vid); },
+    set_value(pid, tid, vid, value){ ipcRenderer.invoke('nano:set', pid, tid, vid, value); },
+    on_value(listener){ ipcRenderer.on('nano-onvalue', (_event, value) => listener(value)); }
+});