Decentralized meta-learning

Personal email server

Linux

Posted on April 27, 2022 | 9 minutes | 1707 words | Iulian Costan

Given that GMail with cease to provide free hosting service for custom domains I've decided to deploy a fully featured personal email server and migrate everything to my Arch Linux box. [Read More]

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SSH keys on USB

Linux

Posted on March 15, 2022 | 4 minutes | 762 words | Iulian Costan

This is how I keep my SSH key(s) secure and offline, stored on encrypted USB flash-drive. [Read More]

SSH GPG keys linux USB

Completion system

Emacs

Posted on February 22, 2022 | 4 minutes | 652 words | Iulian Costan

Completion system … vertico, consult, posframe, orderless, marginalia, projectile … corfu, cape, eglot, kind-icon … Ohhh my! [Read More]

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Chess vs. trading

Trading

Posted on January 11, 2022 | 5 minutes | 876 words | Iulian Costan

Just for fun (and maybe some profit) let's do a comparison (a bit far fetched) between chess and trading. [Read More]

From HDD to SSD w/ EFI boot

Linux

Posted on December 21, 2021 | 3 minutes | 559 words | Iulian Costan

Oh, Oh! Santa is back in town and I bought myself a small gift to upgrade my Arch Linux garage server from HDD to SSD, here is the step-by-step how to… [Read More]

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Segwit transaction by hand

Bitcoin

Posted on November 25, 2021 | 6 minutes | 1192 words | Iulian Costan

Lets hand craft a SegWit transaction using only built-in Python3 functions for hex/bytes manipulation and Sagemath for elliptic curves arithmetic. [Read More]

bitcoin segwit transaction

Price (HLC) breaks indicator

Trading

Posted on October 16, 2021 | 1 minutes | 73 words | Iulian Costan

Maybe one of the most effective indicator that I use on daily basis, Price breaks. [Read More]

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Use Linux kernel module

Kernel

Posted on September 30, 2021 | 3 minutes | 446 words | Iulian Costan

In Part 1 I wrote a simple Linux kernel module, called World, in Part 2 I configured that module, now it's time to use that module from within kernel space (another kernel module). [Read More]

linux kernel module c

Returns, risk-adjusted ratios, metrics

Finance

Posted on September 14, 2021 | 6 minutes | 1189 words | Iulian Costan

You can easily double the investment and also double your return right? Not really, because you are doubling the risk as well… read on to see why. [Read More]

finance trading metrics volatility

Gasherbrum2 - the web app

Mountaineering

Posted on August 27, 2021 | 2 minutes | 238 words | Iulian Costan

One of the most important things in mountaineering is the weather, so ladies and gentlemen, I present you Gasherbrum2 web app (not very inspired name, but it is what it is). [Read More]

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