tag:speakerdeck.com,2005:/heliocola tag:speakerdeck.com,2005:Talk/1121803 2023-12-15T09:56:39-05:00 2023-12-15T10:03:10-05:00 Can you recall a world without having to remember passwords? If Passkeys becomes widely available, that world is a few steps away in our future. Instead of remembering passwords, we will use our biometrics, already available in our phones, laptops, and desktops, and public key encryption! To a future with no passwords! Helio Cola (@heliocola) tag:speakerdeck.com,2005:Talk/1088080 2023-10-08T21:57:49-04:00 2023-10-08T22:00:11-04:00 Can you recall a world without having to remember passwords? If Passkeys becomes widely available, that world is a few steps away in our future. Instead of remembering passwords, we will use our biometrics, already available in our phones, laptops, and desktops, and public key encryption! To a future with no passwords! Helio Cola (@heliocola) tag:speakerdeck.com,2005:Talk/426880 2018-02-02T07:15:49-05:00 2018-02-02T07:18:16-05:00 Ruby and RaspberryPi are available to us for quite sometime and this talk is meant to discuss how to use Ruby to explore things on a RaspberryPi. From a practical point of view, we will go through installation, setup, and build a simple Motion Sensor application and a Time-Lapse Camera using RaspberryPi. Helio Cola (@heliocola) tag:speakerdeck.com,2005:Talk/388940 2017-04-25T12:01:47-04:00 2018-01-12T15:48:32-05:00 In a world we teach ourselves a lot of things, why not do it Ruby-on-Rails-on-Pi way? Let’s get our hands on a piece of hardware, understand what it takes to setup one up, install a couple of libraries, Ruby, RVM, RBENV, a GUI. Let’s get a couple of sensors: motion, temperature, humidity, tsunami, ectoplasm and see if we detect a cool thing or two. Let's discuss how we can use what we know about Rails to explore things on a RaspberryPi. From a practical point of view, we will go through installation, setup, and build a monitoring Motion Sensor application on a RaspberryPi. Helio Cola (@heliocola) tag:speakerdeck.com,2005:Talk/385400 2017-03-28T22:42:36-04:00 2018-01-26T10:41:45-05:00 Ruby and RaspberryPi are available to us for quite sometime and this talk is meant to discuss how to use Ruby to explore things on a RaspberryPi. From a practical point of view, we will go through installation, setup, and build a simple Motion Sensor application on a RaspberryPi. In a world we teach ourselves a lot of things, why not do it Ruby & Pi way? Let’s get our hands on a piece of hardware, understand what it takes to setup one up, install a couple of libraries, Ruby, RVM, RBENV, a GUI. Let’s get a couple of sensors: motion, temperature, humidity, tsunami, ectoplasm and see if we detect a cool thing or two. Helio Cola (@heliocola) tag:speakerdeck.com,2005:Talk/340482 2016-05-06T13:44:29-04:00 2016-05-06T13:50:37-04:00 Whether you are building a Robot, controlling a Radar, or creating a Web App, the Ruby Garbage Collector (GC) can help you. The stats exposed by the Garbage Collector since Ruby v2.1 caught my attention and pushed me to dig deeper. Both Ruby 2.1 and 2.2 brought great performance improvements. From a practical point of view, we will discuss how to use the GC to enhance the performance of your software, from configuration parameters to different approaches on how you can change them yourself. Helio Cola (@heliocola) tag:speakerdeck.com,2005:Talk/303039 2015-06-15T14:19:34-04:00 2015-07-10T19:45:48-04:00 At the beginning of the world there was a Rails app, built to solve a specific problem and it happens to be a single tenant app. In another SAAS world, with a freemium model, most of the tenants that signs up (after finding you on Google) are 'kinda lazy’, and don’t really use the app, and don't do anything other than signup. There will be, however, a few special users out there waiting for your app. They also found you on Google, signs up, logins on a daily basis, use it, and use it. Importantly, these special users had allocated the same amount of resources as the ‘kinda lazy’ ones. To scale in the scenario describe requires a change in approach: Special tenants get Special treatment, while ‘kinda lazy’ tenants get default treatment (and shared resources). In this talk I will describe a few options that are available for this problem. Helio Cola (@heliocola) 2023-12-15T09:56:39-05:00