Tadas Sasnauskas

Introduction Elpako is “an electronic signature & digital services platform”, a product by Nevda.

Recently I restored a Roland XP-60 synth for a friend.

Introduction So I recently got into the impractical hobby of owning a relatively old and high mileage BMW.

Introduction From RedHat article about SELinux: Security-Enhanced Linux (SELinux) is a security architecture for Linux® systems that allows administrators to have more control over who can access the system.

When writing a Rails resource controller code it’s quite common to start with querying from model class itself: Model.find, Model.find_by, Model.where, etc..

Context Most reusable Docker images from Docker Hub or similar repositories are designed to run a single process (e.g. database, web server, cache storage).

I’ve seen this, what I’d call anti-pattern, number of times in pretty much every code base I worked with.

An average tech company nowadays usually uses Jira for issue/project tracking, Confluence as knowledge base and GitHub for source code repositories.

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Rails is generally a feature rich framework and I rarely find anything really missing when developing applications with it.

I always thought Devise is a great example of a remarkably flexible and modular behaviour implementation.

Ever found yourself having difficulty to decide if method belongs to parent or child model?

I’m currently working on a small ESP8266 gadget which runs UDP server and does some actions based on packets received.

So I’ve been raving about OSH Park and how good they are for about a year now.

Expectation (the amazing KiCad 3D preview): Reality:

I was looking to something that could offload doing PWM from microcontroller + save precious I/O pins and found NCP5623: Triple Output I2C Controlled RGB LED Driver The NCP5623 mixed analog circuit is a triple output LED driver dedicated to the RGB illumi…

Finally found some time and inspiration to continue working on this small project and prepared the schematic + PCB layout using KiCad EDA.

Since ESP8266 is cheap as chips (quite literally - less than £2 a pop) I got a handful and started re-building previous breadboard mockups.

One more quick & dirty ESP8266 mockup: Open Sound Control to MIDI bridge.

After a few evenings of messing around with ESP8266 I managed to produce a very simple display of my Strava running stats.

Woo!

It seems I’ve been living under a rock for past couple years not to learn about ESP8266 WiFi module.

My RC2014 is now in a nice sturdy enclosure: Front panel: power button, reset button, power led.

So I bumped into this neat CodePen snippet “Musical Chord Progression Arpeggiator” by Jake Albaugh.

I finally found a DIY retro computer kit that I always wanted: RC2014 (available as a kit on Tindie marketplace).

Once we established that our API code is correctly wired to a component like Doorkeeper then there’s no point in repeating the fact that every request needs to include one or another kind of token header, for example: it '...' do get '/me', nil, {…

One not really obvious ngResource trick is adding custom instance methods.

So.

One tool fails with message about failed child process.

New programming languages lately have been popping up almost monthly but one has really caught my eye: Rust.

A couple night adventure in building custom kickstarted CentOS install disks and then Vagrant base boxes from that.

learnpythonthehardway.org is a good resource but..

For easier conflict resolution use diff3 format.

Why Python is the way it is?

There’s a gotcha if you’re doing responsive designs (which rely on max-device-width) and running tests via xvfb-run: by default xvfb-run launches 640x480px server.

Frontend development can get bit frustrating when working with heavy slow backend.

Centos ships with rather old version of Gearman which also prevents installing latest Gearman PHP module via Pecl.