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we can start so what can you see in the


picture


well yeah


louder


tomato yes


no please stop trolling dude it's


serious presentation so what is a tomato


is it a vegetable


it is


the fruit


okay well


yes you can see a spot a consultant over


here but uh I'll let Romeo answer that


one


and uh what he says is I really like


this tweet because he's saying that in


culinary bounded context tomato is a


vegetable in botanic one that context


tomatoes are fruit and then like mood or


like theatric pundit context uh tomato


is a feedback you can give me a feedback


later and just say tomato so as you see


words have a meaning right and uh


sometimes in different contexts one word


May


different have me different meaning


and a model


in that case if you move it to the


programming world it's not supposed to


match reality right just some part of it


in a specific context


so we could also say that if you think


about one special model that model will


be wrong but actually every model is


wrong but some are useful right and with


strategic domain event design it can


help you if you use this pattern well to


find out what model do you need in a


specific context and we had this debate


about DDD yesterday it was all about the


Aggregates and I agree


Aggregates sometimes are unnecessary and


they may be too much but it's not about


Aggregates it's not only about the


Aggregates and we should limit ourselves


to it


because there's more


and usually in our systems I think


especially in race I noticed that our


models grow too much


and that's why DDD sucks


data driven


database driven development of course


but not always because there is a place


for it in certain spaces


uh but usually


we need more sophisticated modeling


techniques as the project goes on and as


it grows thank you


conferences


okay sorry uh good good hint


um so yeah


welcome


I'm not so fluent in English but I try


my best so my presentation will be short


it's called


golfing


so on on the on the game of Advent of


code example


I am the prog organizer so Posner


Community we are often often and intense


there we drink some Pitch yeah


alcohol and flavor the thing after so


it's cool join us


Alvin this is the it's in December some


some tasks to do and they


they are quite quite easy to pass some


data and analyze it people are yeah are


eager to solve it at the beginning but


the lighter it is we drop this so a huge


community and and


talking about the the quests and the


solutions memes this is really crazy I


like it actually


and code golfing is the solving problem


with the shortest source source code as


could be so people just can't the back


the the bytes in the code and the


solutions and we compare with it let's


code this better than to match


and shorter code is better too


I don't know a very specialized


languages for code golfing golf script


is the the macro for Ruby actually and


it was really well known in community


there are special languages which are


they are not readable at all they are


also base 64 actually commands plugged


into software compiled so it's crazy


just to have yeah better score very


Google called gem so if we solve the the


Solutions algorithms and people are


trying to get very fast to solve it and


they even introduce a code golfing


languages to make it faster because it's


it's making shorter also the what we


have to write


it's of course cryptic but uh this is


how it is


um and this is the show time


sorry


um so as you can see here uh there is


some some various uh golf uh admin of


code


task we have to pass this this


CDs so some console and parse it and


here is the trivial solution for it uh


in normal way but in code golf we have


to make it shorter yeah so I will maybe


Zoom a bit a bit Yeah and yeah you can


see that here is evaluing the strings


missing the spaces and you also hack


what requires the space and


um so you learn a lot about the language


itself and what is required and it's


cryptic of course but we can make it


better with ruboko or something like


that here is the more advanced stuff so


less than uh yeah a little bit more than


100 charts yeah we could say charts


actually there or bytes and you try to


solve the issues which normally would be


quite easy but adding this goal of


having code golf it makes yeah fun and


interesting actually yeah and


um


yeah it's fun it's good to have uh what


I discovered here I said also about the


control flow about the about why we have


some such dollars uh dollar actually


variables uh Global variables in Ruby so


they are useful for for scripts in Ruby


scripted language uh better parsing the


files which are passed to scripts which


which I learned in by using it


and less code is not easier to


understand at all


uh what section I also discovered that


we have reversive recursive arrays in in


Ruby and actually it's supported so we


can see on the bottom that we have some


brackets with three dots in in output so


it's it's supported


interesting so we can you can make some


graphs which are Yeah by using some


arrays


and here is the source


yeah


yeah so thanks for listening


yeah there is also some some tips about


Ruby Ruby code golfing there


slide so I'm just gonna monologue


um yeah the second talk I'm giving today


at a ruby conference that has no Ruby


code in it so that's always interesting


um I'm just going to talk about


mentorship and how we delivered the


rails World website project so I've been


writing software professionally for


about 10 years so I like to think of


myself as an old fart uh grumpy old man


who's way too young to say back in my


day but I still say back in my day far


too often


um so back in um


I think March or April the newly found


rails Foundation but at a blog post


saying we want a junior developer to


build our website and a senior to Mentor


this junior developer which I thought


was a really great initiative given uh


chat earlier this afternoon about how


hard it is for juniors to get started in


the Ruby world so I looked at that and


thought okay what a great opportunity to


completely ruin the mind of an


optimistic excited Junior so


I put my name in the Hat for the mentor


role and and I got it and I had a


meeting with Amanda who runs the rails


Foundation uh the junior developer Shona


and yeah we got started with the project


and uh Shona was an absolute star like


uh she made my job really really easy


but


um as a mentor I kind of went into this


project with a few kind of rules in in


mind one was I didn't want to write any


code myself at all I wanted to lay out


guidance in written form beforehand and


then through code review and feedback


and player programming kind of guide the


Junior because if I did all the work


then she wouldn't learn the other thing


was I didn't want to take any credit I


thought any credit I need to deflect on


to Shona but if something goes wrong


then I'll take the blame and that's a


very very hard mindset I think for you


even though like I intentionally did it


it was a very hard mindset to kind of


get into because yeah there's only


downside and not a lot outside for you


from an external like point of view so


those are kind of my principles going


into the project and um the website


itself is going to live under Ruby


onrails.org in the same repo which is a


jackal site and doesn't have any


JavaScript in it so to start with that


is like uh okay let's try and not try


any JavaScript HTML and CSS that went


out of the window quite quickly because


client wanted like moodles and carousels


and all that stuff so I started thinking


okay how are we gonna do all of this


stuff


um Anna like like I said you want to


write any code so I couldn't do anything


and I'm like okay well maybe I'll teach


you how to set up an es build Pipeline


and do all that and I was like more I


think about it is like that's just too


hard like can you imagine a junior


developer who doesn't know this


JavaScript world too well trying to set


up an es build pipeline it's just


nightmarish and I'm like wait a sec why


do we need to do any of that


javascript's in a pretty good place I


just we just used custom elements to


kind of encapsulate stuff in in classes


so we're not writing like crappy


procedural code like 15 years ago but


literally just encapsulating stuff in


classes which are custom elements and


then referencing them just as is uh like


in a script tag just referencing a


Javascript file the same way we did 15


years ago uh that's all we did so we had


like I think a turbo import on top and


then below to our two or three


JavaScript files which is a simple


classes that kind of do like Carousel


stuff and Moodle stuff and things like


that and yeah we delivered what I think


is a pretty modern website uh writing


code probably the way we did 15 years


ago in terms of websites


and the website kind of works without


JavaScript so if you turn it off


um everything still works and I was


really just proud of firstly off show


and after delivering this project and


making my job quite easy and secondly I


learned a lot as a mentor


um because I would have never thought of


stripping back all of this complexity if


I wasn't doing the mentoring job as you


is building it myself I would have


thrown all this complexity in just


because like I said I'm an old fart I'm


set in my ways I like to do things in a


certain way uh and um sometimes you do


hear that the coach actually learns more


than the student and that was for me


very true in this case so I just wanted


to like share the story because


mentorship I think is something that's


really important with all the chat


around Juniors not getting good


opportunities I think it's really good


to um if if you are experienced to kind


of share that knowledge around because


uh you will probably gain a lot more


from entering a junior that that you


imagine and I think I don't know if some


of you might have heard that the


organizer Brighton Ruby Andy Kroll runs


a project called first Ruby friend which


is kind of a thing that matches up


mentors to mentees so that's a really


great way of getting started with


mentorship if you want to


um yeah perfect timing thank you


[Applause]


hello everyone again so this is my


second lightning talk uh on the previous


one I was mentioning a helpling tool


belt I don't actually have any slides I


don't really need them for this one so I


mentioned that we are creating our own


internal command line tool and uh when


you are doing this thing in Ruby uh


there are like two ways you can approach


that you can either have it in just one


big script which is easier or you can


have it properly so like with multiple


files so it's easier to maintain but


then there is this problem like when


you're running a ruby script uh like


this it kinda gets messy when for


example you have multiple ruby versions


or like and then you don't have the gems


installed for your command line too or


um there was this issue with bundler


that it actually requires the gem file


in your current directory to have all


the gems installed and even if your


script doesn't use any of that it's


still going to fail and it's going to


complain that you need to install your


jams which for us was annoying when we


were using docker so there is a way to


avoid that it's to actually package your


uh binary script into a binary for those


of you that are in Ruby like uh world


for at least since 2014 there was


something called traveling Ruby it was


made by the people from the Fusion


passenger it was basically like a


pre-built Ruby with some niceties and


then it packaged it into one directory


and you could use that


and I mentioned 2014 for a reason


because that's around the time when the


last actual contribution was made there


was some slight movement in 2021 to uh


like you know to bring this back but


there weren't actually any progress so


like I've checked the GitHub before and


yeah it's it's not really usable right


now the Ruby is like 2.4 and I wouldn't


recommend it and there is an alternative


for that it's called Ruby Packer and


it's a tool that uh Works in a slightly


different way what it does is it's


actually compiles Ruby and gets your


code into a virtual file system inside


and then patches Ruby a little bit so it


uh works with that file system and it


can reference files from there it can


require them from there uh like from


your perspective it's actually pretty


transparent so you don't have to worry


about that once you actually build your


tool and the title of this lightning


talk is The Good the Bad and the Ugly so


the good thing is that when you build


your binary tool


um I think I'm going too far here uh


when you're building that tool


um you no longer have to worry about the


gems you don't have to worry about


installing Ruby it just works because


it's a single binary uh the bad part is


that well this binary is going to be


pretty big


um like hour two is like 30 megabytes


which may or may not be a problem for


you depending on your use case


and also another ugly thing is that the


original outer of this store has stopped


maintaining it like two years ago and


there are various Forks that you can


probably find on Google I've managed to


find one that actually embeds Ruby 3.1.3


so it works pretty well uh I would


normally have a slide with like a link


to it but since I don't have slides then


apologies you will also have to Google


it uh the guy actually advertised it on


Reddit so Ruby Parker read it and you


will find it it's probably the first


thing


and now the ugly part well this is a


binary so it's built like a binary uh


which unfortunately means that uh you


cannot really cross compile it if you


want to build a binary format you need


to build it on Mac if you have a binary


for Linux you have to build it for Linux


and also I've noticed that there is a


problem that not everything is actually


statically compiled so


um like we're building this for a very


specific uh Linux distribution and Mac


so we are building this for Ubuntu and I


have no idea if it's actually gonna work


on like Fedora or Arch Linux or whatever


because I know that it doesn't work with


older versions of Ubuntu because of some


libraries being missing so it's quite


possible that you would actually have to


also build it on different distributions


which may be a no-go but other than that


it's actually pretty nice and it allows


you to have a command line tool without


worrying about the overall environment


all over the place


so yeah Ruby Parker thank you


[Applause]


okay so do you see my screen


okay great


so


um uh you remember this is also my


second lightning talk first one was uh


yesterday I spoke about procrastination


about how when I procrastinate on my


actual job I optimize certain shell


tools and like tweak my setup a little


bit and generally like I believe that


computers are extremely boring and


sometimes the only way to survive is by


having fun with them so one of the ways


that I found to have fun with my Mac it


sounds really sad but it is


um is by using this by using the say


command


um it's uses Macos built in text to


speech


so if I type let's see if if this sound


output works


[Music]


yeah so if you type say uh good evening


now again


good evening could you hear that okay


more or less right okay so


um and you can you can have fun with it


as I said you can make it it's funny


things like if you pick a French


sounding voice


um like some voices are specialized some


voices are text to speech generators


that are specializing in a certain


Locale or language so if you pick a


French voice make it say some English


things it will uh be adorable like this


good evening my friends did you enjoy


the conference in whatsoever


I had to misspell Wordsworth for it to


pronounce it correctly you can also do


some essay make it say some um some


Polish things


did you understand that all right cool


you can also make it say things in


Russian


okay you get the idea right so um in


addition I use the terminal emulator


called item and this item thing has um


has a feature called triggers it just


um finds a text matching some regular


expression in your terminal session and


then it executes a command and you see


where this is going right my test Runner


which is our spec sorry not sorry it's


our spec uh it produces an output it's


called five test failed or all test pass


this is very simple I I just trained the


trained I set up two triggers as you can


see


here I set up two triggers


in my test window


triggers when basically I don't know if


it zooms yeah basically when it finds


when it finds like some some examples of


your failures it says Speak test success


right this is so I can do the the


following I can um oh now I need to


put the microphone back in here


so this is some toy Ruby code the best


kind of Ruby code


um you can see I if I run the test it


runs in the in a separate window down


here but really when I work on laptop I


don't want to see the window at all


right all I want to see is my my code


so like every dangerous weapon this


feature is requires a safety so first


they have to say speech on


right and now we can test it finally


run my test


nice work tests are green


so now it gives me the feedback without


me even looking at the test output right


and now if I um you know if I um


basically


intentionally break the test and run it


again


come on


oh wait sorry


five tests failed so now it tells me


that


oh no five tests failed so and it's like


a randomizes uh things yeah I know my


time is up uh it randomizes things like


I have these several phrases set up for


test success is this this failure and um


yeah that's basically it


thank you very much


foreign