First year of my study (application development) (5 years ago).

We were finally starting getting courses on using Linux and the teacher knew I was already using it for a while so he said that I had to finish the assignment but could work on whatever I wanted next to that.

Assignment was installing a server, getting a web server up and running and compiling at least one program from source.

I setup the server in 20 minutes, wrote a script to do the rest for me and was finished in half an hour. (we got 10 weeks for this (1 hour every week officially))

Well, I was about to start doing my own shit when people started asking me for help.
Fuck it, I love helping people with the things I'm passionate about so sure!

For weeks, during that one hour, I was probably the second teacher. Got called all over the classroom and helped people with everything.

Afterwards (the course), most people said that I probably helped about the whole class pass that course and I got called the linux God etc.

From that day on, my nickname at my study, which even many teachers used was: Mr. Linux.

It felt awesome though!

And still whenever I visit that place again, one teacher always goes: Hello again, mr. Linux!

*Opens some Computerphile video on YouTube in Chrome Canary*
CPU > hey ho dude, wait a minute..! I can't process all of this in realtime!!! >_<

Alright.. I think I've still got a copy of all their videos sitting somewhere in the file server.. perhaps I could use that instead.
*Opens said video from the file server in SMPlayer*
CPU > aah, thanks man. Now I can allocate 15-ish % of my resources to that and give you a good watching experience.

Web browsers are really great for being the most general-purpose document viewers, application execution environments (remote code execution engines as someone here called it), and overall be one of the most versatile programs on any PC's standard software suite.

But that comes at a price.. performance. And definitely when it comes to featureful fucking WordPress shitsites (shites?), bloated YouTube, Google, Facebook, and all that fucking garbage.. I fucking hate web browsers and this "Web 2.0" that people keep on talking about. Your boatload of JavaScript frameworks just to ease your own fucking development has a real impact when it happens on dozens of tabs, you know.

Besides, can't those framework creators just make it into a "compiler" * of sorts? So that front-end devs can flail their dicks in an shit-infested environment full of libraries and frameworks all they want, but the framework can convert it into plain JS code that the web server can then serve. Or better yet, the JavaScript standard could be improved to actually be usable on its own!

Look, I'm not a front-end dev. Heck, I'm not even a dev to begin with. But what I do know is that efficiency matters, especially at large scale. Web browsers being so overgeneralized and web devs adding a boatload of fucking libraries or frameworks or whatever, it adds up, both to the CPU's and my own temper.

(*) Quote marks because source code to source code isn't really compiling, but then uglified JS looks worse than machine code anyway so meh :/

When I learnt programming, sugar was still made out of salt and hence not used in coffee.

Also, we didn't have source level debuggers, only the "print" method. However, compiling was also slow. It was faster and more convenient to go through the program and execute the statements in one's head. This helped understanding what code is doing just by reading it. It also kept people from trial and error programming, something that some people fall for when they resort to single step debugging in order to understand what their own code is even doing.

Compiling was slow because computers in general were slow, like single digit MHz. That enforced programming efficient code. It's also why we learnt about big Oh notation already at school. Starting with manual resource management helped to get a feeling for what's going on under the hood.

Hooked up my Raspberry Pi and compiling OpenCV from source! Hope it pulls through.

Here it is: get MythTV up and running.

In one corner, building from source, the granddaddy Debian!

In the other, prebuilt and ready to download, the meek but feisty Xubuntu!

Debian gets an early start, knowing that compiling on a single core VM won't break any records, and sends the compiler to work with a deft make command!

Xubuntu, relying on its user friendly nature, gets up and running quickly and starts the download. This is where the high-bandwidth internet really works in her favor!

Debian is still compiling as Xubuntu zooms past, and is ready to run!

MythTV backend setup leads her down a few dark alleys, such as asking where to put directories and then not making them, but she comes out fine!

Oh no! After choosing a country and language the frontend commit suicide with no error message! A huge blow to Xubuntu as this will take hours to diagnose!

Meanwhile, Debian sits in his corner, quietly chugging away on millions of lines of C++...

Xubuntu looks lost... And Debian is finished compiling! He's ready to install!

Who will win? Stay tuned to find out!

Freecad isn't open source software!

If it is impossible to get something compiled, it can't be open source.
When you can't compile it, all, that is left, is to use a binary.
If there is only a binary, it isn't open source.

Seriously: If you are participating in an open source project, please make sure, that compiling from source is a viable option for the generic gentoo user. Thank you.

I'm really not sure. When I was 7-8 years old, I liked to view source in IE, then I somehow managed to use Javascript in the browser. First only some dumb opening of windows. And I liked Batch, so I made some files for copying, backup and stuff.

Then I got to PHP during the years from some online tutorial about making dynamic websites. My website was more static than stone, but yeah, I did page loading with PHP! Awful experience anyway, because I had to install Xampp, get it work and other stuff. 11 years old or so. (and I used Xampp only as a fileserver between laptop and desktop later, because.. PHP4... just no.)

As 12 years old or so I experienced my first World of Warcraft (vanilla) on a custom server in an internet cafe and I thought it's a singleplayer game. When I found out that no, I googled how to make my own server (hated multiplayer back then and loved good games with huge storylines). Failed miserably with ManGOS, got something to work with ArcEMU. There I learned some C++ basic stuff, which I hoped would helped me to fix some bugs. When I opened the code I was like: "Suuure." and left it like that. I learned what a MySQL database is, broke it like four times when I forgot WHERE and still rather played with websites i.e. html, css, js and optionally php when I wanted to repair a webpage for the server. With a friend we managed to get the server work via Hamachi, was fun, the server died too soon. Then I got ManGOS to work, but there wasn't really any interest to make a server anymore, just singleplayer for the lore. (big warcraft fan, don't kick me :D )

I think it was when I was 13y.o. I went to Delphi/Pascal course, which I liked a lot from the beginning, even managed to use my code on old Knoppix via Lazarus(Pascal). At this age I really liked thoae Flash games which were still common to see everywhere. So I downloaded .swfs, opened and tried to understand it. Managed to pull some stuff from it and rewrite in Pascal. Nope, never again that crap.

About the same time I got to Flash files I discovered Java. It was kind of popular back then, so I thought let's give it a try. I liked Flash more. Seriously. I've never seen so much repetitiveness and stupid styling of a code. I had either IDE for compiling C++ or Pascal or notepad! You think I wanted my code kicked all over the place in multiple folders and files? No.

So back to Pascal. I made some apps for my old hobby, was quite satisfied with the result (quiz like app), but it still wasn't the thing. And I really thought I'd like to study CS.

I started to love PHP because of phpBB forums I worked on as 15 y.o. I guess. At the same time I think there was an optional subject at school, again with Pascal. I hated the subject, teacher spoke some kind of gibberish I didn't really understand back then at all and now I find it only as a really stupid explanation of loops and strings.

So I started to hate Pascal subject, but not really the lang itself. Still I wanted something simpler and more portable. Then I got to Python as hm, 17y.o. I think and at the same time to C++ with DevC++. That was time when I was still deciding which lang to choose as my main one (still playing with website, database and js).

Then I decided that learning language from some teacher in a class seriously pisses me off and I don't want to experience it again. I choose Python, but still made some little scripts in C++, which is funny, because Python was considered only as a scripting lang back then.

I haven't really find a cross-platform framework for C++, which would: a) be easy to install b) not require VisualStudio PayForMe 20xy c) have nice license if I managed to make something nice and distribute it. I found Unity3D though, so I played with Blender for models, Audacity for music and C# for code. Only beautiful memories with Unity. I still haven't thought I'm a programmer back then.

For Python however I found Kivy and I was playing with it on a phone for about a year. Still I haven't really know what to do back then, so I thought... I like math, numbers, coding, but I want to avoid studying physics. Economics here I go!

Now I'm in my third year at Uni, should be writing thesis, study hard and what I do? Code like never before, contribute, work on a 3D tutorial and play with Blender. Still I don't really think about myself as a programmer, rather hobby-coder.

So, to answer the question: how did I learn to program? Bashing to shit until it behaved like I desired i.e. try-fail learning. I wouldn't choose a different path.

Avoid ACPICA if at all possible. It's one garbage tier cluster fuck of bad design, horrible documentation and downright misleading and wrong code

It's meant to consist of an ASL compiler, disassembler, debugger, dumper, various user space utitilies and a kernel resident OSPM implementation *if* you can figure out what belongs to what. Even just compiling this pile of trash is a mystery in itself. Think you need the source files in source/common? EEEEH, wrong. Well, at least partially since most of them seem to be for the user space stuff..? Other ones *are* needed on the other hand. At least the disassembler and/or debugger and/or dumper components seem to reference them. Not that I could figure out how to compile those anyways. The real path to your goal seems to be to ignore a seemingly arbitrary subset of source and header files until your linker stops complaining

There's also a bunch of configuration defines, some of which *you* define, some defined *for* you, based on again others. Of course most of them do stupid shit. Enabling the debugger automatically enables debug logging. Enabling the disassembler force enables debug allocation tracking... What?

The code itself isn't of much help either. Looking in "os_specific/service_layers" you find what looks to be reference implementations of acpica functions in certain os' like windows and unix. Of course I had a look because AcpiOsReadMemory is supposed to read physical memory and I don't know how I would even implement that. But hey, osunixxf.c (xf for interface... of course) should tell me. I'll let you see for yourself in the attached image. Apparently it does fuck all and just returns AE_OK. No error, no logging, no nothing. Just ok. As you can imagine, AcpiOsWriteMemory doesn't do much more either.
...okay so maybe physical memory accesses aren't actually used and these functions are some sort of relic from past times? Nope! They are absolutely necessary for doing low level device interaction. WTF. So finally I went to the linux source and checked how *they* implemented them, and just as I thought, these functions are anything but no-ops...
...So for what fucking reason do these stupid interface implementations even exist but to purposefully mislead you?? They aren't used for fucking anything! As far as I know Windows doesn't even *use* ACPICA and Linux have their own fork with working implementations... They just sit there, just to tell you how to NOT do it

So that's some of my thoughts about ACPICA. Note that I haven't even used it as a library yet, I just got it to compile and link and it already fucked with me this much.
There's also so much more I didn't mention like that you *have* to modify the acpica source in order to get your own platform header working (else #error) eventhough the docs explicitely instruct you not too but you get the point

Don't use ACPICA if you don't have to. Save your sanity for something that's worth it

Compiling QT from source literally takes hours on a i7 6700...

So I just ditched Windows, but then realized that my music production stuff (mostly REAPER and a few free VSTs) are all Windows/Mac only.
Audio on Linux is fun (as in, pain). JACK seems to be really flexible but is a pain to set up correctly.

Any of you use Linux for music production? Any advice?

I'm using Elementary. Essentially, I need:
1. A good DAW for recording, minimal MIDI.
2. A good sampler.
3. Standard plugin suite - reverb, eq, filters, compressors, delays, etc. I'm not too choosy.
4. Basic synths (I'll be happy with a simple saw/square wave generator, but the more the merrier).

How's Ardour? Compiling it from source right now.

REAPER on Wine doesn't run well for me, so that's out. And they don't have a native Linux version yet.

(no Bitwig, please, I'm not ready to pay $300 or whatever right now)

*Earlier today, asked a colleague to add exception handling for some (around 20) source files.*

*Just now, he walked over to my desk and this is the conversation that took place between us*

He: Hey, I've handled exceptions in those source files. But now the build is failing.

Me: Let me check. *pulled up the code and saw compilation errors 😠*

Me: Hmm, there are compilation issues. Did you try running those in your local machine?

Him: No, should I?

Me: *still trying to figure out why on earth the code is not compiling* Ah, you should have. That would have saved us some time.

Him: Oh, I see. Adding exception handling was an easy task, so I didn't bother to run it.

Me: *After seeing curly braces being missed out or added all over the files, I lost my fucking mind😡😠*

Me: Hey, don't worry. I'll take it from here 😊. *IN MY MIND: Thanks for being an ass hole and doubling my work on a day before a long weekend 😠😡🤬*

I know this is utopic, but I've been thinking for a while now about starting an open source platform for figuring out the problems of our society and finding real world, applicable, open source solutions for them.

To give you some more details, the platform should have two interfaces:
- one for people involved in researching, compiling issues into smaller, concrete chunks that can be tackled in the real world, discuss and try to find workable solutions for the issues and so on
- one for the general public to search through the database of issues, become aware of the problems and follow progress on the issues that people started working on

Of course, anyone can join the platform, both as an observer (and have the ability to follow issues they find interesting) and/or contributor (and actually work with the community to make the world a better place in any way they can).

Each area of expertise would have some people that will manage the smaller communities that would build around issues, much like people already do in the open source community, managing teams to focus on the important thins for each issue. (I haven't found a solution for big egos getting in the way yet, but it would be nice if the people involved would focus on fixing stuff in stead of debating about tabs vs spaces, if you know what I mean).

The goal of this project would be to bring together as many people from all kind of fields to actually try to fix this broken society.

It would be even better if it attracted people with money and access to resources (one example off the top of my head being people like Elon Musk) that could help implement the solutions proposed by the community without expecting to gain profit off of it (profit is also acceptable if it is made in a considerate, fair and helpful way, but would not be promoted on the platform).

The whole thing would be voluntary work; no salary, no other commitment than the personal pledge that once someone chooses to tackle something, he/she will also see it trough (or at least do his/her best).

The platform would be something like a mix of real time communication, issue tracker, project management tool and publishing platform.

I don't yet have all the details for how it should all fit together, but if there is something that I would like to start, this is definitely it!

PS: I don't think I can ever do something like this by myself, and I don't really have the time to manage a community of developers to start work on it right now. But if you guys think something like this is something worth your time, I will make time and at least start on defining the architecture and try to turn this into a real project.

If enough people are interested, I will drop any other side projects and do my best to get this into the world!

Thank you for reading :)

My work product: Or why I learned to get twitchy around Java...

I maintain a Java based test system, that tests a raster image processor. The client is a Java swing project that contains CORBA bindings to the internal API of the raster image processor. It also has custom written UI elements and duplicated functionality that became available in later versions of Java, but because some of the third party tools we use don't work with later versions of Java for some reason, it's not possible to upgrade Java to gain things as simple as recursive directory deletion, yes the version of Java we have to use does not support something as simple as that and custom code had to be written to support it.

Because of the requirement to build the API bindings along with the client the whole application must be built with the raster image processor build chain, which is a heavily customised jam build system. So an ant task calls out to execute a jam task and jam does about 90% of the heavy lifting.

In addition to the Java code there's code for interpreting PostScript files, as these can be used to alter the behaviour of the raster image processor during testing.

As if that weren't enough, there's a beanshell interface to allow users to script the test system, but none of the users know Java well enough to feel confident writing interpreted Java scripts (and that's too close to JavaScript for my comfort). I once tried swapping this out for the Rhino JavaScript interpreter and got all the verbal support in the world but no developer time to design an API that'd work for all the departments.

The server isn't much better though. It's a tomcat based application that was written by someone who had never built a tomcat application before, or any web application for that matter and uses raw SQL strings instead of an orm, it doesn't use MVC in any way, and insane amount of functionality is dumped into the jsp files.

It too interacts with a raster image processor to create difference masks of the output, running PostScript as needed. It spawns off multiple threads and can spend days processing hundreds of gigabytes of image output (depending on the size of the tests).

We're stuck on Tomcat seven because we can't upgrade beyond Java 6, which brings a whole manner of security issues, but that eager little Java updated will break the tool chain if it gets its way.

Between these two components we have the Java RMI server (sometimes) working to help generate image data on the client side before all images are pulled across a UNC network path onto the server that processes test jobs (in PDF format), by reading into the xref table of said PDF, finding the embedded image data (for our server consumed test files are just flate encoded TIFF files wrapped around just enough PDF to make them valid) and uses a tool to create a difference mask of two images.

This tool is very error prone, it can't difference images of different sizes, colour spaces, orientations or pixel depths, but it's the best we have.

The tool is installed in both the client and server if the client can generate images it'll query from the server which ones it needs to and if it can't the server will use the tool itself.

Our shells have custom profiles for linking to a whole manner of third party tools and libraries, including a link to visual studio 2005 (more indirectly related build dependencies), the whole profile has to ensure that absolutely no operating system pollution gets into the shell, most of our apps are installed in our home directories and we have to ensure our paths are correct for every single application we add.

And... Fucking and!

Most of the tools are stored as source bundles in a version control system... Not got or mercurial, not perforce or svn, not even CVS... They use a custom built version control system that is built on top of RCS, it keeps a central database of locked files (using soft and hard locks along with write protecting the files in the file system) to ensure users can't get merge conflicts by preventing other users from writing to the files at all.

Branching is heavy weight and can take the best part of a day to create a new branch and populate the history.

Gathering the tools alone to build the Dev environment to build my project takes the best part of a week.

What should be a joy come hardware refresh year becomes a curse ("Well fuck, now I loose a week spending it setting up the Dev environment on ANOTHER machine").

Needless to say, I enjoy NOT working with Java. A lot of this isn't Javas fault, but there's a lot of things that Java (specifically the Java 6 version we're stuck on) does not make easy.

This is why I prefer to build my web apps in python or node, hell, I'd even take Lua... Just... Compiling web pages into executable Java classes, why? I mean I understand the implementation of how this happens, but why did my predecessor have to choose this? Why?

AHHHHHHHHHHGGGH

I HATE VPN SETUP

- Trying OpenSwan
Installing open swan on a Debian machine.. setting up the config.
Restarting openswan. Syntax error. No syntax error to be found.
Different tutorial.. it starts! Try to connect.. I can’t connect. Look at the logs. No errors.
Tcpdump. My traffic is coming through.. all fine.. try to connect again.. it works! (Nothing changed!)
Try to ping somewhere else.. no connectivity.
Try to ping an IP in the same network.. works fine. So I have connectivity, just no internet.
Spend an hour finding out about traffic directions of which no one seems to know what they really mean.
Boss tells me to stop using openswan because it’s deprecated and replaced by strong swan..

- Strongswan
Reinstall Debian machine, install strongswan. Copy openswan config. Oh, they’re incompatible? Look up strong swan config, and the service starts.
Connect to the VPN.. it works! Again, no internet, just connectivity in the same network. Spend 2h debugging the config, disable firewalls everywhere, find an ancient bug in the Debian package related to my issues.. ok, let’s try compiling from source.. you know what, let’s not. I’ll throw this Debian machine away and try something completely different.

- pfSense
Ok, this looks easy enough! Let’s just click through the initial setup, change some firewall rules, create an L2TP VPN with a simple wizard.
Try to connect to VPN. First, it times out. Maybe a firewall issue? Turn off firewall.. ah, something happens now. I get an error message right after trying to connect to the VPN. Hmm, the port doesn’t even get opened when I enable the firewall.. this implementation seems a bit buggy.. let’s try their OpenVPN module.

Configure OpenVPN. Documentation isn’t that clear.. apparently a client isn’t actually a client but a user is a client.. ok, there’s a hidden checkbox somewhere.
Now where do I download my certificate? Oh, I need a plug-in for that.. ok, interesting. Able to download the certificate, import it, connect and.. YES!!! I can ping! But, I have no DNS..
Apparently, ICMP isn’t getting filtered but all outbound ports are.. yet the firewall is completely disabled. Maybe I need outbound NAT? Oh. There’s no clear documentation on where to configure it. Find some ancient doc, set it up, still no outbound connectivity.

AHAHAHAHHHHHHHHHHG

Then I tried VyOS. I had a great L2TP VPN working in less than 15 mins. Thank you VyOS for actually providing proper docs and proper software.

so, I've been using funtoo for quite a while as my personal os. Work still insists on using mint. so I wanted to try out the ecc gpg keys, which requires gpg version 2.1. Have it installed on funtoo with a few commands :)
I thought I was up for the challenge... compiling gnupg from source...
let's just say that after hours of struggling with the dependencies and totally breaking basically everything, I am now happily using version 2.1 on mint 18

I'm compiling an entire Android build from source. Even with 16 dedicated compilation threads, it's like watching paint dry.

It's nowhere near my early days taking over 24 hours to compile a Linux kernel... But it's still painful.

Any one with experience in compiling openssl from source code using cmake?