How to web app isntace of Zxing QR generator locally? - maven

I am hoping someone can provide some guidance on how to host a local html / web app instance of https://zxing.appspot.com/generator. I have read the documentation, and have searched in the web but I have come away empty-handed.
Also related, Does anyone know how safe it is to use zxing.appspot.com/generator when entering personal info (like wifi passwords)?--> this is one motivation to run the app locally but I am not sure if this concern is well-founded.
I tried downloading the web app source code from: https://github.com/zxing/zxing/tree/master/zxing.appspot.com
and installed it using maven. It seems like the installation went without issues (in wsl2), but I dont find a way to run the app locally as a web server.

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How to make react native app communicate with local machine (ios)

I need to know ALL the things I need to do in order to allow a react native app communicate with a local server running on my mac. (I'm running react native on an ios device).
This is what I know of/have tried:
Using the actual IP address of my machine instead of localhost
Set up signing & capabilities in xcode
Make sure both the iphone and computer are on the same network
Make sure there are no firewalls up on the computer running the api
Set the info.plist to "AllowArbitraryLoads = true"
Here's my full info.plist if you want to check it
I have been trying to get this simple react native app to communicate with a bare-bones flask app on my computer for like a week now, and I'm starting to lose my mind.
Assume I'm a complete moron. If there's something that "everybody knows and isn't worth mentioning", please mention it. If I didn't list it above, then I don't know about it. I feel like I'm missing a very simple step here but I cannot for the life of me figure out what it is.
Here are the error logs (i've tried googling the Flipper errors, with little success, so if you know anything about that please share):
Here's a link to a demo project I'm using to test this:
https://github.com/aymather/reactNativeHttpTest
Finally figured out the last step I was missing...
When you run the flask app, you have to run it to be hosted on 0.0.0.0 rather than 127.0.0.1 which are both ways of referencing your local machine, but are treated slightly differently on the network.

Is there an easy way to run,use & display desktop programs on web browser from my own computer without uploading on other server or using online app?

For example there is a calculator app inside my computer so can i run ,use and display calculator app on web browser from my computer but only by using server like xammp or other offline software without uploading on others server or using online app ? please provide easy solution.
You can try OnlineVNC? http://www.onlinevnc.com/
I'm not sure if it fits your criteria though. It's a server part that you install on your PC so that you can remote it from a browser.

Using facebook APIs locally

i want to start making a facebook app and using the APIs, but i dont have a website to test anything out. how do i get it working on localhost or is it better to start using heroku for it and upload all my php files onto that
Use XAMPP
It's available for Windows, Linux and for Mac.

App inventor blocks editor is starting slow and return error "could not download starter application..."

I'm trying to run blocs editor for app inventor. It's starting slowly and then returns message:
We could not download the starter application from the server in order to install it on the device. This may prevent the "Connect to Device" button from working.
This error can occur if you have tried to start the blocks editor with a previously downloaded ".jnlp" file.
I have installed last version of java, other java applications are working fine. How does make the block editor work?
There could be lots of reasons. Which browser are you using? Did you already try another?
Probably there is some kind blocking software running on your machine, perhaps a firewall. There have also been reports of this from misconfigured virus scanners.
You also might want to take a look at the troubleshooting page. If this does not help, post a question in the Getting Set Up and Connecting Your Phone to App Inventor forum.

Accessing WebService From Windows Mobile

I want to access Web service from windows mobile application and want to process data returned by it. I am not finding any step by step guide to it. I found some articles relevant but they don't clearly mention what setting are required to run in the emulator and what setting are required in order to run on the physical device. Please suggest me best way.
Beginner always need guidance from scratch so there should be some step by step article.Thanks in advance.
I don't have any detailed instructions but I've done heaps of this soft of thing. It's exactly the same as connecting a normal Windows app to a web service. You way want to try this first using a simple WinForms app so you understand the basics of creating a web reference.
The only complication is that your emulator or mobile device will need to be able to connect to the machine running the web service but this should also be pretty easy. Just set up a simple html test page on your PC and ensure you can browse to this using the emulator.

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