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Centralized Configuration for .NET Core using Azure Cosmos DB and Narad

We are living in a micro services world. All these services are generally hosted in Docker container which are ephemeral. Moreover these service need to start themselves up, talk to each other, etc. All this needs configuration and there are many commercially available configuration providers like Spring Cloud Config Server, Consul etc. These are excellent tools which provide a lot more functionality than just storing configuration data. However all these have a weakness - they have a single point of failure - their storage mechanism be it a file system, database etc. There are ways to work around those but if you want a really simple place to store configuration values and at the same time make it highly available, with guaranteed global availability and millisecond reads, what can be a better tool than Azure Cosmos DB!
So I set forth on this journey for ASP.NET Core projects to talk to Cosmos DB to retrieve their configuration data. For inspiration I looked at Steeltoe Configuratio…

Enabling IT in Healthcare by simulating Patient Data

In the current times of pandemics and disease outbreaks, it is of paramount importance that we leverage software to treat diseases. One important aspect of healthcare is Patient Management. IT systems have to be developed which can support management at an enormous scale. Any development of such good software system requires data which is as realistic as possible but not real. There has to be a fine balance between privacy and enabling developers to anticipate the myriad health scenarios that may occur. Towards this initiative, healthcare industry has been standardizing around the HL7 (Health Level 7) protocol. The HL7 protocol itself has undergone transformation from pipe-based formats (v2.x) to JSON/XML based (FHIR) modern formats. FHIR is the future of HL7 messages and is being increasingly adopted. However given the slow nature and reluctance by healthcare providers to change or upgrade their systems, a majority of hospitals still use the HL7 2.3 format.
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Pi Hole - Ad blocking (Turbocharged!)

The entire internet is now made up of ads. To easily navigate it and find the information you are looking for, most people use ad blocking software. It improves page loading times and also uses less data (sometimes by up to 10 times!)
Google Chrome is the de facto browser of choice for most people. Google's main business is advertising. So you can see how ad-blocking software collides with Google's business objectives. When Chrome was trying to be popular, it started allowing plugins like AdBlock Plus etc. Then slowly it started partnering with them for "Acceptable Ads Program" for a lot of money. Now after cementing its position as the most popular browser, Google is now coming down hard on ad blocking software. It is turning off a Chrome API (webRequest API) which most ad blocking plug-ins use to block ads.
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