Testing Diagrams.net

This post is a test mode for diagrams.net oriented on the use of these diagrams for generating Wardley Maps and integrate them into business use cases that accelerate the generation of documentation and the interaction between people working on them. Template to be used plus glossary of terms Version 0.0.2 Version 0.0.3 Library build by … Read more

Twitter and the common problem of the 30%

In October 2020 I wrote about the payment war in the mobile app ecosystem, where basically a set of companies were fighting against the 2 giants (Apple and Google) about the payments to be done for every payments done from applications managed by their store. Now in 2022, Twitter creates a “check” with an initial … Read more

AWS Honeycode

Honeycode is the low-code service in beta version being implemented by Amazon. Things I have noticed: The features are very basic, the templates available basic too. The customers using it are not top tier customers. It’s beta. The number of vacancies opened in amazon.jobs is low and last role available is from April 2022. The … Read more

Print on Demand Services

Since 2015 – 2018 there are different print on demand services available around the world that enable designers to produce and commercialize their products in different geographic areas. The main products sold on this way are shirts, pullover hoddies, zip hoddies and other type of textile products. There are other vendors that offer mugs, caps, … Read more

Class ‘WooCommerce\PayPalCommerce\Compat\PPEC\DeactivateNote’ not found

I have this error on my WordPress environment while I’m configuring paypal payments on the Woocommerce environment. The problem When i do a check out of a product and click on payment. Once the paypal credentials this error is shown: [INVALID_REQUEST] Request is not well-formed, syntactically incorrect, or violates schema. https://developer.paypal.com/docs/api/orders/v2/#error-INVALID_STRING_LENGTH Logs The Woocommerce log … Read more

Commitment of Traders (COT) in tradingview

Some theory to add background I continue studying about market breadth, and this time I’m creating a script for the analysis of the Commitment of Traders. The Commitment of Traders (COT) reports show futures traders’ positions at the close of (usually) Tuesday’s trading session. The report is prepared by the Commodity Futures Trading Commission (CFTC). … Read more

Tradingster, Commitments of Traders (COT) reports

Tradingster.com provides free COT charts and COT reports. The Commitments of Traders (COT) reports provide a breakdown of each Tuesday’s open interest for markets in which 20 or more traders hold positions equal to or above the reporting levels established by the CFTC. The original COT report is text based and doesn’t include any charts … Read more


This platform, competes with Tradingview.com, and it comes with different features and levels of analysis of data that are interesting. I have to go a little bit deeper on the analysis of the tool and try to learn if it’s worthy than tradingview. There is a programatic way to filter companies, which is something really … Read more