RasterInterrupt
@rasterinterrupt.oldbytes.space.ap.brid.gy
My God, it's full of code! 🕹️ 🇦🇹
#RetroComputing #RetroGaming #Amiga #C64
#Programming #3DPrinting
#OpenSource #Linux
🌉 bridged from ⁂ https://oldbytes.space/@rasterinterrupt, follow @ap.brid.gy to interact
#RetroComputing #RetroGaming #Amiga #C64
#Programming #3DPrinting
#OpenSource #Linux
🌉 bridged from ⁂ https://oldbytes.space/@rasterinterrupt, follow @ap.brid.gy to interact
It was bothering me that the date format on my #fedora / #kde system was kind of wrong. I am Austrian, and we are used to dd.mm.yyyy. But on my system it was always displayed as dd.mm.yy (two‑digit year instead of four).
I thought surely it could be […]
[Original post on oldbytes.space]
I thought surely it could be […]
[Original post on oldbytes.space]
January 23, 2026 at 2:39 PM
It was bothering me that the date format on my #fedora / #kde system was kind of wrong. I am Austrian, and we are used to dd.mm.yyyy. But on my system it was always displayed as dd.mm.yy (two‑digit year instead of four).
I thought surely it could be […]
[Original post on oldbytes.space]
I thought surely it could be […]
[Original post on oldbytes.space]
Doing #adventofcode again. Working my way through 2020 and playing with numbers again.
January 15, 2026 at 6:03 PM
Doing #adventofcode again. Working my way through 2020 and playing with numbers again.
Printed an E10 light bulb socket designed in #freecad.
Files are on #printables:
https://www.printables.com/model/1548066-e10-socket-for-mini-light-bulb
#3dprinting #freecadfriday
Files are on #printables:
https://www.printables.com/model/1548066-e10-socket-for-mini-light-bulb
#3dprinting #freecadfriday
January 8, 2026 at 5:03 PM
Printed an E10 light bulb socket designed in #freecad.
Files are on #printables:
https://www.printables.com/model/1548066-e10-socket-for-mini-light-bulb
#3dprinting #freecadfriday
Files are on #printables:
https://www.printables.com/model/1548066-e10-socket-for-mini-light-bulb
#3dprinting #freecadfriday
I completed #adventofcode 2021 today by finishing day 25. I did it in #typescript, which was ok, but it’s missing some important features I’m used to, such as object equality and comparison mechanisms. The same goes for tuples, which can’t be compared by value […]
[Original post on oldbytes.space]
[Original post on oldbytes.space]
January 7, 2026 at 4:26 PM
I completed #adventofcode 2021 today by finishing day 25. I did it in #typescript, which was ok, but it’s missing some important features I’m used to, such as object equality and comparison mechanisms. The same goes for tuples, which can’t be compared by value […]
[Original post on oldbytes.space]
[Original post on oldbytes.space]
Doing #adventofcode 2021 day 24 the easy way. Wrote C++ code that uses all cores to look for the solution while I think of a better way. Let's see who will get the solution first, my brain or the program.
January 6, 2026 at 10:44 AM
Doing #adventofcode 2021 day 24 the easy way. Wrote C++ code that uses all cores to look for the solution while I think of a better way. Let's see who will get the solution first, my brain or the program.
Didn't I say I am glad, that #adventofcode was shorter this year? Look at me doing AoC 2021 now. 🫣
https://github.com/nharrer/AdventOfCode/blob/main/2021/day19/solve-day19.ts
https://github.com/nharrer/AdventOfCode/blob/main/2021/day19/solve-day19.ts
December 19, 2025 at 12:29 AM
Didn't I say I am glad, that #adventofcode was shorter this year? Look at me doing AoC 2021 now. 🫣
https://github.com/nharrer/AdventOfCode/blob/main/2021/day19/solve-day19.ts
https://github.com/nharrer/AdventOfCode/blob/main/2021/day19/solve-day19.ts
I’ve been a long time #windows user (since 3.11). And I also use #linux a lot for server stuff. But my working machine has always been windows.
But this year is the year. About a month ago, I completely switched to Linux, and I went all in. I’m now running a […]
[Original post on oldbytes.space]
But this year is the year. About a month ago, I completely switched to Linux, and I went all in. I’m now running a […]
[Original post on oldbytes.space]
December 18, 2025 at 6:38 PM
I’ve been a long time #windows user (since 3.11). And I also use #linux a lot for server stuff. But my working machine has always been windows.
But this year is the year. About a month ago, I completely switched to Linux, and I went all in. I’m now running a […]
[Original post on oldbytes.space]
But this year is the year. About a month ago, I completely switched to Linux, and I went all in. I’m now running a […]
[Original post on oldbytes.space]
My current machine is an AM4‑based Ryzen 5 3600 with 32GB of RAM that I built in 2019. I’m running #proxmox, where one VM with PCI passthrough is my main/daily work horse. Works like a dream.
I planned on getting myself a new machine around this time, but with those RAM prices, no thanks. Grrr […]
I planned on getting myself a new machine around this time, but with those RAM prices, no thanks. Grrr […]
Original post on oldbytes.space
oldbytes.space
December 13, 2025 at 6:29 PM
My current machine is an AM4‑based Ryzen 5 3600 with 32GB of RAM that I built in 2019. I’m running #proxmox, where one VM with PCI passthrough is my main/daily work horse. Works like a dream.
I planned on getting myself a new machine around this time, but with those RAM prices, no thanks. Grrr […]
I planned on getting myself a new machine around this time, but with those RAM prices, no thanks. Grrr […]
Also, a shoutout and high‑five to a few fellow Mastodons who posted incredible stuff, interacted with me, or are just plain awesome:
@jochie
@movq
@alrj
@tipiak75
@RogerBW
@jeff
@everythingalsocan
@psf
@papajohn
@sol_hsa
@mina
@Tipa
@psychotimmy
@teotwaki
@mnvr
Thanks, #adventofcode was just […]
@jochie
@movq
@alrj
@tipiak75
@RogerBW
@jeff
@everythingalsocan
@psf
@papajohn
@sol_hsa
@mina
@Tipa
@psychotimmy
@teotwaki
@mnvr
Thanks, #adventofcode was just […]
Original post on oldbytes.space
oldbytes.space
December 13, 2025 at 11:07 AM
Some thoughts about #adventofcode 2025:
So that's it, folks, for this year. It has been huge fun again.
As usual, I'm sad that it's over, but also a bit glad it was shorter. It can be quite a burden with family, kids, work, the Christmas season, and AoC on top of it.
Altogether, I feel good […]
So that's it, folks, for this year. It has been huge fun again.
As usual, I'm sad that it's over, but also a bit glad it was shorter. It can be quite a burden with family, kids, work, the Christmas season, and AoC on top of it.
Altogether, I feel good […]
Original post on oldbytes.space
oldbytes.space
December 12, 2025 at 5:35 PM
Some thoughts about #adventofcode 2025:
So that's it, folks, for this year. It has been huge fun again.
As usual, I'm sad that it's over, but also a bit glad it was shorter. It can be quite a burden with family, kids, work, the Christmas season, and AoC on top of it.
Altogether, I feel good […]
So that's it, folks, for this year. It has been huge fun again.
As usual, I'm sad that it's over, but also a bit glad it was shorter. It can be quite a burden with family, kids, work, the Christmas season, and AoC on top of it.
Altogether, I feel good […]
#adventofcode Day 12: Christmas Tree Farm
Sigh. I wasted the whole morning rotating patterns, throwing away identical patterns, pattern matching, and stuff. Then, on a hunch, I just entered the number of rows that could be solvable (eliminating those where […]
[Original post on oldbytes.space]
Sigh. I wasted the whole morning rotating patterns, throwing away identical patterns, pattern matching, and stuff. Then, on a hunch, I just entered the number of rows that could be solvable (eliminating those where […]
[Original post on oldbytes.space]
December 12, 2025 at 12:38 PM
#adventofcode Day 12: Christmas Tree Farm
Sigh. I wasted the whole morning rotating patterns, throwing away identical patterns, pattern matching, and stuff. Then, on a hunch, I just entered the number of rows that could be solvable (eliminating those where […]
[Original post on oldbytes.space]
Sigh. I wasted the whole morning rotating patterns, throwing away identical patterns, pattern matching, and stuff. Then, on a hunch, I just entered the number of rows that could be solvable (eliminating those where […]
[Original post on oldbytes.space]
#adventofcode Day 11: Reactor
Wow, turned out to be the almost shortest and fastest code of this year. Enduring so many past AoC graph puzzles has finally paid off. I even finished both parts before breakfast. Okay, I’ll stop bragging now. There is still one […]
[Original post on oldbytes.space]
Wow, turned out to be the almost shortest and fastest code of this year. Enduring so many past AoC graph puzzles has finally paid off. I even finished both parts before breakfast. Okay, I’ll stop bragging now. There is still one […]
[Original post on oldbytes.space]
December 11, 2025 at 7:22 AM
#adventofcode Day 11: Reactor
Wow, turned out to be the almost shortest and fastest code of this year. Enduring so many past AoC graph puzzles has finally paid off. I even finished both parts before breakfast. Okay, I’ll stop bragging now. There is still one […]
[Original post on oldbytes.space]
Wow, turned out to be the almost shortest and fastest code of this year. Enduring so many past AoC graph puzzles has finally paid off. I even finished both parts before breakfast. Okay, I’ll stop bragging now. There is still one […]
[Original post on oldbytes.space]
#adventofcode Day 10: Factory
Part 1 was easy, and I did it before breakfast.
But Part 2: Oh my! I tried to do it with combinatorics first, and it was too slow, even after countless optimizations. There is probably a dynamic programming way to do it, but […]
[Original post on oldbytes.space]
Part 1 was easy, and I did it before breakfast.
But Part 2: Oh my! I tried to do it with combinatorics first, and it was too slow, even after countless optimizations. There is probably a dynamic programming way to do it, but […]
[Original post on oldbytes.space]
December 10, 2025 at 12:58 PM
#adventofcode Day 10: Factory
Part 1 was easy, and I did it before breakfast.
But Part 2: Oh my! I tried to do it with combinatorics first, and it was too slow, even after countless optimizations. There is probably a dynamic programming way to do it, but […]
[Original post on oldbytes.space]
Part 1 was easy, and I did it before breakfast.
But Part 2: Oh my! I tried to do it with combinatorics first, and it was too slow, even after countless optimizations. There is probably a dynamic programming way to do it, but […]
[Original post on oldbytes.space]
#adventofcode Day 09: Movie Theater
Oh boy, did I get lost on part 2 by trying to solve it through fragmenting the area into rectangles.
While it was getting more and more complicated, it occurred to me that I could just compress the input and brute force it […]
[Original post on oldbytes.space]
Oh boy, did I get lost on part 2 by trying to solve it through fragmenting the area into rectangles.
While it was getting more and more complicated, it occurred to me that I could just compress the input and brute force it […]
[Original post on oldbytes.space]
December 9, 2025 at 1:34 PM
#adventofcode Day 09: Movie Theater
Oh boy, did I get lost on part 2 by trying to solve it through fragmenting the area into rectangles.
While it was getting more and more complicated, it occurred to me that I could just compress the input and brute force it […]
[Original post on oldbytes.space]
Oh boy, did I get lost on part 2 by trying to solve it through fragmenting the area into rectangles.
While it was getting more and more complicated, it occurred to me that I could just compress the input and brute force it […]
[Original post on oldbytes.space]
A tip for people doing #adventofcode in #csharp: use a checked block, or better yet, add true to your .csproj. Otherwise, overflow errors will not be thrown. A classic AoC trap, when the example input works but the real input doesn’t.
December 8, 2025 at 1:07 PM
A tip for people doing #adventofcode in #csharp: use a checked block, or better yet, add true to your .csproj. Otherwise, overflow errors will not be thrown. A classic AoC trap, when the example input works but the real input doesn’t.
#adventofcode Day 08: Playground
Another fun puzzle. I was afraid that building all the pairs would be too slow, but actually 1000*999/2 is not very much, and the code completes in a quarter of a second, so good enough. Today I refrained from structuring […]
[Original post on oldbytes.space]
Another fun puzzle. I was afraid that building all the pairs would be too slow, but actually 1000*999/2 is not very much, and the code completes in a quarter of a second, so good enough. Today I refrained from structuring […]
[Original post on oldbytes.space]
December 8, 2025 at 11:14 AM
#adventofcode Day 08: Playground
Another fun puzzle. I was afraid that building all the pairs would be too slow, but actually 1000*999/2 is not very much, and the code completes in a quarter of a second, so good enough. Today I refrained from structuring […]
[Original post on oldbytes.space]
Another fun puzzle. I was afraid that building all the pairs would be too slow, but actually 1000*999/2 is not very much, and the code completes in a quarter of a second, so good enough. Today I refrained from structuring […]
[Original post on oldbytes.space]
#adventofcode Day 07: Laboratories
What a cool puzzle! I love that the solution represents a beautiful Christmas tree.
On the second part, I first thought about recursions. But then, wait a second... It's way easier.
On a side note: I switched from Windows […]
[Original post on oldbytes.space]
What a cool puzzle! I love that the solution represents a beautiful Christmas tree.
On the second part, I first thought about recursions. But then, wait a second... It's way easier.
On a side note: I switched from Windows […]
[Original post on oldbytes.space]
December 7, 2025 at 9:47 AM
#adventofcode Day 07: Laboratories
What a cool puzzle! I love that the solution represents a beautiful Christmas tree.
On the second part, I first thought about recursions. But then, wait a second... It's way easier.
On a side note: I switched from Windows […]
[Original post on oldbytes.space]
What a cool puzzle! I love that the solution represents a beautiful Christmas tree.
On the second part, I first thought about recursions. But then, wait a second... It's way easier.
On a side note: I switched from Windows […]
[Original post on oldbytes.space]
#adventofcode Day 06: Trash Compactor
I first solved the puzzle it with a couple of loops. Even though functional code is ugly in C#, I took my time today to unroll all the loops into a functional style, which makes the code pretty compact.
With 20 lines […]
[Original post on oldbytes.space]
I first solved the puzzle it with a couple of loops. Even though functional code is ugly in C#, I took my time today to unroll all the loops into a functional style, which makes the code pretty compact.
With 20 lines […]
[Original post on oldbytes.space]
December 6, 2025 at 9:46 AM
#adventofcode Day 06: Trash Compactor
I first solved the puzzle it with a couple of loops. Even though functional code is ugly in C#, I took my time today to unroll all the loops into a functional style, which makes the code pretty compact.
With 20 lines […]
[Original post on oldbytes.space]
I first solved the puzzle it with a couple of loops. Even though functional code is ugly in C#, I took my time today to unroll all the loops into a functional style, which makes the code pretty compact.
With 20 lines […]
[Original post on oldbytes.space]
#adventofcode Day 05: Cafeteria
Alrighty. Today was about has hard (or easy) as yesterday for me I'd say. But I am not complaining. The hard stuff is coming soon enough!
With 21 lines of code, this has been my smallest solution so far this year.
#csharp […]
[Original post on oldbytes.space]
Alrighty. Today was about has hard (or easy) as yesterday for me I'd say. But I am not complaining. The hard stuff is coming soon enough!
With 21 lines of code, this has been my smallest solution so far this year.
#csharp […]
[Original post on oldbytes.space]
December 5, 2025 at 1:50 PM
#adventofcode Day 05: Cafeteria
Alrighty. Today was about has hard (or easy) as yesterday for me I'd say. But I am not complaining. The hard stuff is coming soon enough!
With 21 lines of code, this has been my smallest solution so far this year.
#csharp […]
[Original post on oldbytes.space]
Alrighty. Today was about has hard (or easy) as yesterday for me I'd say. But I am not complaining. The hard stuff is coming soon enough!
With 21 lines of code, this has been my smallest solution so far this year.
#csharp […]
[Original post on oldbytes.space]
#adventofcode Day 04: Printing Department
Today was good. I was done in about 10-15 minutes, which is phenomenal for me because I am a rather slow person.
I spent some time improving the code and noticed that the functional methods like .Count and .Sum are […]
[Original post on oldbytes.space]
Today was good. I was done in about 10-15 minutes, which is phenomenal for me because I am a rather slow person.
I spent some time improving the code and noticed that the functional methods like .Count and .Sum are […]
[Original post on oldbytes.space]
December 4, 2025 at 10:36 AM
#adventofcode Day 04: Printing Department
Today was good. I was done in about 10-15 minutes, which is phenomenal for me because I am a rather slow person.
I spent some time improving the code and noticed that the functional methods like .Count and .Sum are […]
[Original post on oldbytes.space]
Today was good. I was done in about 10-15 minutes, which is phenomenal for me because I am a rather slow person.
I spent some time improving the code and noticed that the functional methods like .Count and .Sum are […]
[Original post on oldbytes.space]
It's amazing how many people are tooting about #adventofcode on #mastodon this year. I remember that 2–3 years ago, it was only a handful of regular people. I almost felt lonely here. Last year, I was at least able to look through all the toots of the day with the #AdventOfCode hashtag every […]
Original post on oldbytes.space
oldbytes.space
December 3, 2025 at 4:16 PM
It's amazing how many people are tooting about #adventofcode on #mastodon this year. I remember that 2–3 years ago, it was only a handful of regular people. I almost felt lonely here. Last year, I was at least able to look through all the toots of the day with the #AdventOfCode hashtag every […]
#adventofcode Day 03: Lobby
Today was right up my alley.
I think that is the kind of problem that really occurs in a developer’s everyday work
When I was done, I also tried to do it in a more functional way, but it looked so complicated. In the end, two […]
[Original post on oldbytes.space]
Today was right up my alley.
I think that is the kind of problem that really occurs in a developer’s everyday work
When I was done, I also tried to do it in a more functional way, but it looked so complicated. In the end, two […]
[Original post on oldbytes.space]
December 3, 2025 at 9:12 AM
#adventofcode Day 03: Lobby
Today was right up my alley.
I think that is the kind of problem that really occurs in a developer’s everyday work
When I was done, I also tried to do it in a more functional way, but it looked so complicated. In the end, two […]
[Original post on oldbytes.space]
Today was right up my alley.
I think that is the kind of problem that really occurs in a developer’s everyday work
When I was done, I also tried to do it in a more functional way, but it looked so complicated. In the end, two […]
[Original post on oldbytes.space]
#adventofcode Day 02: Secret Entrance
It took me a bit longer than yesterday, but this time both answers were correct on the first try. Nice!
#csharp code is here:
https://github.com/nharrer/AdventOfCode/blob/main/dotnet/2025/Day02/Day02.cs
Puzzle:
https://adventofcode.com/2025/day/2
It took me a bit longer than yesterday, but this time both answers were correct on the first try. Nice!
#csharp code is here:
https://github.com/nharrer/AdventOfCode/blob/main/dotnet/2025/Day02/Day02.cs
Puzzle:
https://adventofcode.com/2025/day/2
December 2, 2025 at 10:19 PM
#adventofcode Day 02: Secret Entrance
It took me a bit longer than yesterday, but this time both answers were correct on the first try. Nice!
#csharp code is here:
https://github.com/nharrer/AdventOfCode/blob/main/dotnet/2025/Day02/Day02.cs
Puzzle:
https://adventofcode.com/2025/day/2
It took me a bit longer than yesterday, but this time both answers were correct on the first try. Nice!
#csharp code is here:
https://github.com/nharrer/AdventOfCode/blob/main/dotnet/2025/Day02/Day02.cs
Puzzle:
https://adventofcode.com/2025/day/2
#adventofcode Day 01: Secret Entrance
Oh man, I really fumbled my way through part 2. It sounded easier than it actually was. I kept yelling to myself: "Hey it's day 1, you should be finished by now!".
#csharp code is here […]
[Original post on oldbytes.space]
Oh man, I really fumbled my way through part 2. It sounded easier than it actually was. I kept yelling to myself: "Hey it's day 1, you should be finished by now!".
#csharp code is here […]
[Original post on oldbytes.space]
December 1, 2025 at 8:59 AM
#adventofcode Day 01: Secret Entrance
Oh man, I really fumbled my way through part 2. It sounded easier than it actually was. I kept yelling to myself: "Hey it's day 1, you should be finished by now!".
#csharp code is here […]
[Original post on oldbytes.space]
Oh man, I really fumbled my way through part 2. It sounded easier than it actually was. I kept yelling to myself: "Hey it's day 1, you should be finished by now!".
#csharp code is here […]
[Original post on oldbytes.space]