Decentralized meta-learning

Tips & tricks for testing Elixir applications… there are tons of libraries for testing, each one with different syntactic sugar, runtime (sync vs. async) and implementation details but all we need for unit testing are these 3: ExUnit, Hammox and Mimic.

Eastern Carpathians (Carpații Orientali in Romanian) mountain range stretching from the northern border of Romania down to the Prahova Valley.

Mnesia is the master-less distributed storage built-in Erlang and by default it inherits all the goodies of Erlang cluster distribution. Lets give it a try.

As a wise man once said:

1. beginners think in $ change,
2. intermediates think in % change,
3. pros think in Z change.

Introducing new Tradingview Outlier changes alert indicator that calculates click (price change), percentage change, and Z-score (standard deviation multiple) changes while displaying outliers based on defined ranges.

I use Dokku as Platform As A Service (PaaS) tool, which is very convenient until you have dozen of apps deployed (like I do) and hit Let's Encrypt limits.

A functional architecture design with a "functional core" layer for business logic, then a "state servers" layer for state management and finally an "imperative shells" layer for side-effects.

I was not a big fan of traditional VPN services (which are highly centralized and slow) until Wireguard has arrived and was merged into Linux Kernel; a VPN for this century, peer to peer with state of the art cryptography.

You can easily double the investment and also double your return right? Not really… read on to see a few metrics that I use.

Self-generated certificate is good for bootstrapping purpose but sooner than later we need a valid SSL certificate for all services (IMAPS, HTTPS, DoT etc).