The Wiert Corner – irregular stream of stuff

Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for the ‘Conferences’ Category

The SQL Murder Mystery

Posted by jpluimers on 2023/01/17

After last week’s posts PostgreSQL Exercises and SQLZOO: Interactive SQL tutorials (no login required), I did a Twitter search:

[Archive] pgexercises.com – Twitter Search / Twitter.

This got me to [Wayback/Archive] The SQL Murder Mystery (which is fun!).

I got there via [Archive] Lætitia on Twitter: “@nthonynowocien I’d say pgexercises is a good start for SQL pgexercises.com Even though, the last exercises are not beginner level. The SQL murder mystery is more fun mystery.knightlab.com” / Twitter

–jeroen

Posted in Conference Topics, Conferences, Database Development, Development, Event, Software Development, SQL | Leave a Comment »

Working around Archive.is/.today/.ph/.li/.vn/.fo/.md eternal spinner “Loading” when trying to archive a page

Posted by jpluimers on 2023/01/13

I have had the below Archive.is spinner “Loading” without any progress indication on a couple of URLs the last few months and I think they are tied to having special characters in the URL-to-be-archived.

My usual workaround was to first archive in the Wayback Machine, then archive the resulting URL in Archive.is as it would automatically follow the path up to the original URL,

That of course failed when  https://web.archive.org/web/*/vx-underground.org did not want to save in Archive.is: either these would give an eternal spinner on the “Loading” page no matter the browser you were using either the escaped %2A or *:

Read the rest of this entry »

Posted in archive.is / archive.today, Conference Topics, Conferences, Event, Internet, InternetArchive, LifeHacker, Power User, WayBack machine | Leave a Comment »

SQLZOO: Interactive SQL tutorials (no login required)

Posted by jpluimers on 2023/01/12

[Wayback/Archive] SQLZOO has an extensive set of interactive tutorials spread over these topics:

  • basic SQL tutorials gradually getting more difficult (including some Covid-19 materials)
  • SQL “how to” style questions
  • More involved examples from easy via medium to hard
  • A White Christmas challenge

So the above is kind of a continuation of my series of games to learn software and database development PostgreSQL Exercises.

I found it via the first reaction to [Archive] Steve Polito on Twitter: “If you’re like me and want to level up your SQL game, give PostgreSQL Exercises a try. …” / Twitter (which initiated yesterday’s post):

[Archive] Loumarven Payot on Twitter: “@stevepolitodsgn I’ve also tried sqlzoo.net. Almost done with it. Next on my list are dataschool.com and selectstarsql.com” / Twitter

Which means I’ve more sites to try.

These will be the next: [Wayback/Archive] Learn SQL: Interactive SQL Book, from dataschool and [Wayback/Archive] Select Star SQL (which is an interactive book that I should be able to finish in a day full of reading and experimenting).

–jeroen

Posted in Conference Topics, Conferences, Database Development, Development, Event, Software Development, SQL | Leave a Comment »

Enabling GitHub pages to a HTML or markdown GitHub project is dead easy: Delphi deadlockempire is now hosted on github.io

Posted by jpluimers on 2023/01/10

A while ago I wrote about Setting up a GitHub project so it is served over https as a github.io and a custom subdomain.

Doing the full “host on your custom domain” route was a big tougher than I hoped for, so I totally forgot how easy it is to convert an existing HTML or markdown documentation repository to use GitHub pages without a custom domain.

I needed it for the Delphi version of the DeadLockEmpire (see links below, originally it was an interactive tutorial game focusing on the C# language and .NET runtime), as I am trying to get as much as my stuff published and hosted in a manner that will outlive me (I still have a pretty high chance of the rectum cancer metastases returning).

Enabling GitHub Pages on your repository is almost as easy as hosting a page through raw.githack.com (where I already hosted raw.githack.com/jpluimers/deadlockempire.github.io/feature/Delphi-language-and-Delphi-RTL/index.html as raw.githack.com/jpluimers/deadlockempire.github.io/feature/Delphi-language-and-Delphi-RTL/index.html and rawcdn.githack.com/jpluimers/deadlockempire.github.io/feature/Delphi-language-and-Delphi-RTL/index.html).

This is how easy it was to get it hosted as [Wayback/Archive] jpluimers.github.io/deadlockempire.github.io:

  1. In my [Wayback/Archive] jpluimers/deadlockempire.github.io: The Deadlock Empire: Slay dragons, learn concurrency! repository, go to the Settings tab, then click on Pages:
    DeadLockEmpire Settings tab, Pages configuration None

    DeadLockEmpire Settings tab, Pages configuration None.

    Here you see “None” as value for the branch to be published as GitHub Pages.

  2. Here I have chosen the Branch “feature/Delphi-language-and-Delphi-RTL” to be published, and am about to press “Save” (full screenshot below):
    DeadLockEmpire Pages selecting the correct branch

    DeadLockEmpire Pages selecting the correct branch

  3. After pressing “Save“, the site gets published (it takes about a minute for that to complete) at [Wayback/Archive] jpluimers.github.io/deadlockempire.github.io:
    DeadLockEmpire Pages the correct branch has been saved

    DeadLockEmpire Pages the correct branch has been saved which will automagically publish it.

That was it. No more steps.

Each new commit in the selected branch will auto-publish as well.

Related DeadLockEmpire posts

  1. 2016 – If you thought you could do multi-threading, then play “The Deadlock Empire” games.
  2. 2017 – ThreadBarrier/ThreadBarrier.pas at master · lordcrc/ThreadBarrier
  3. 2020 – Davidlohr Bueso on Twitter: A programmer had a problem. He thought to himself, “I know, I’ll solve it with threads!”. has Now problems. two he
  4. [WayBack] One second code: Do YOU know how much your computer can do in a second? is a quiz version of the [WayBack] Numbers Every Programmer Should Know By Year. [WayBack] About this game revealed…Source: One second code: Do YOU know how much your computer can do in a second? « The Wiert Corner – irregular stream of stuff

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Posted in .NET, About, C#, Conference Topics, Conferences, Delphi, Development, Event, Personal, Software Development, Web Development | Leave a Comment »

2021 Hackaday Remoticon – links to conference, playbacks and some slide decks

Posted by jpluimers on 2023/01/04

Another remote conference I missed while recovering from rectum cancer treatment, but luckily the playbacks are on YouTube and some slide decks are at Google Drive.

Via: [Archive] Uri Shaked on Twitter: “My talk on @hackaday Remoticon starting now Reverse Engineering the ESP32 WiFi Live stream: … “ / [Archive] Jeroen Wiert Pluimers on Twitter: “Dang. I copied that one out of the description. All the timestamps there are corrupted as YouTube measures them in minutes:seconds but @hackaday posted them as hours:minutes (which are off by minutes anyway) starting at 01:56:30. This is the correct one: … “

Links:

  • Web site at [Wayback/Archive] 2021 Hackaday Remoticon
  • Videos at [Wayback/Archive] HACKADAY – YouTube:
    • Day 1: [Wayback/Archive] 2021 Hackaday Remoticon: Friday – YouTube

      Approximate hour:minute time stamps as published for Friday

      They are usually at least minutes off; substract 11:00 to get the rough hour:minute index into the video, then scroll from there.

      • 11:00 Opening Remarks
      • 11:10 Keynote – Elecia White: Map Files and Other Buried Treasures
      • 12:10 Maurits Fennis: Hack for the Planet: Reverse Engineering Embedded Systems to Reduce E-Waste
      • 13:00 Matt Venn: Open Source ASICs – A Year in Perspective
      • 13:35 Hal Rodriguez and Sahrye Cohen: Conductive Melody: a Tech Couture Instrument
      • 14:10 Jay Bowles: A Dip Into The Plasmaverse
      • 15:00 Voja Antonic: Become a Hardware Expert in 40 Minutes
      • 15:50 Sergiy Nesterenko: Don’t Flip My Bits: Electronics in Spaaaace
      • 16:25 Jeroen Domburg: Rickrolling Buddha: A Deep Dive in Reverse Engineering and Thoroughly Pwning an Unknown Chip
      • 17:15 Lewin Day: Hacker Trivia (Stream will automatically redirect to this one: [Wayback/Archive] youtu.be/uRpUdQi31tg )
      • 18:00 Bring-a-Hack on Gather Town platform (details on joining sent to ticket holders and on the Discord server)
    • Day 2: [Wayback/Archive] 2021 Hackaday Remoticon: Saturday – YouTube

      Approximate hour:minute time stamps as published for Saturday

      They are usually at least minutes off; substract 10:00 to get the rough hour:minute index into the video, then scroll from there.

      • 10:00 Opening Remarks
      • 10:10 Keynote – Keith Thorne: LIGO: The Most Sensitive Instrument Humans Ever Created Will Unfold the Mysteries of Gravitational Waves
      • 11:10 Arsenijs Picugins: Laptop-Be-Done
      • 12:00 Uri Shaked: Reverse Engineering the ESP32 WiFi
      • 12:35 Hash Salehi: Smart Meter Hacking
      • 13:10 Jay Doscher: Getting Started With and Outgrowing Tinkercad
      • 14:00 Joey Castillo: Teaching An Old LCD New Tricks
      • 14:35 Colin O’Flynn: Upskilling your Hardware Security Work
      • 15:10 Rob Weinstein: Patently Obvious – Reverse Engineering a 45 Year Old Patent into a Fully-Functional HP-35 Replica
      • 16:00 Debra Ansell: Form is Function: Modular PCB Building Blocks
      • 16:35 Vaibhav Chhabra: M19 Initiative – A Case of Open Innovation & Distributed Manufacturing at Scale
      • 17:25 Keynote – Jeremy Fielding: Building Hardware that Moves: the Fundamentals that Everyone Should Know
      • 18:25 Hackaday Prize Ceremony
      • 19:25 Closing Remarks
      • 19:35 DJ Jackalope: Live Set (listen/watch on Twitch, chat with everyone on discord)

–jeroen

Posted in Conferences, Development, ESP32, Event, Hardware Development, Remoticon, Software Development | Leave a Comment »

 
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