Ölbaum

I can do anything. I can do absolutely anything. I’m an expert.

Recently worked on the development of the GX400 core for MiSTer FPGA, starting with Nemesis.

https://twitter.com/oscherler
https://cohost.org/oscherler

Public Key

npub1mql8akkdzh5hv3pjda28nsw3nqv6nmmsmdgpyd72wq32fvu7gj7qjwwvcv

NIP-05 Address

[email protected]

Profile Code

nprofile1qqsds0n7mtx3t6tkgsex74rec8gesxdfaacdk5qjxl98qg4ykw0yf0qpz3mhxue69uhhyetvv9ujuerpd46hxtnfduqs6amnwvaz7tmwdaejumr0ds2l45tk

Publishing to

relay.damus.io

nos.lol

Author Public Key

npub1mql8akkdzh5hv3pjda28nsw3nqv6nmmsmdgpyd72wq32fvu7gj7qjwwvcv

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Last Notes

2026-07-06 20:04:17 GMT

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It’s quite disliked, but I like it. Make sure you play the sequel (Belmont’s Revenge,) it’s fantastic.

2026-05-05 10:55:13 GMT

Adding a user to a group on a Debian server requires a reboot. How fucked up is that? #Linux #Debian
https://superuser.com/questions/1850304/adding-user-to-group-not-taking-effect-until-restart

2026-05-02 13:16:36 GMT

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I can picture a cursed TV wall mount where the edges of the wall plate are not aligned with the built-in level, and nor are the wall plate to TV plate rails, and the rails are aligned to neither the edges of the TV plate, nor the VESA holes, but in the end, trusting the built-in level results in a level TV. 😅

2026-04-15 19:04:58 GMT

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Then your might like this one. One person, esoteric instruments, and chiptune music.
https://www.youtube.com/watch?v=qajayobAOHo
cc @npub1u5z…esha @npub1szz…t4fx

2026-04-10 14:07:48 GMT

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I don’t think we need to worry about that guy’s earnings. #PrivateJet

2026-03-18 19:42:33 GMT

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To be fair, it doesn’t have tags, branches, or merges either, so…
(That’s sarcasm: I know how you’re supposed to do those, and I posit it sucks.)

2026-02-11 19:51:29 GMT

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That’s some mad skills you’ve got here.
@npub1zhe…ctns

2026-02-08 10:38:42 GMT

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At least we have laws (notice the plural) that protect workers, rentals, and individuals in general against corporations.

2026-02-08 08:49:12 GMT

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Please don’t conflate the US ‘legal’ ‘system’ with Western democracy.
@npub1zhe…ctns

2026-01-26 17:41:18 GMT

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At least two LucasArts games are nothing but an advertisement for root beer. 😉

2025-12-14 13:37:06 GMT

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I thought you had decided to stop doing Pepper & Carrot episodes a while back. Did you change your mind, or did I invent or misunderstand it?

2025-12-09 23:38:16 GMT

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That’s the reason in a tiny minority of cases. For the rest, the reason is superstition: some dickhead at company B saw such a login form by company A, didn’t know why it was done that way, concluded it must be for security reasons, made the team do the same, and told customer service to tell people who complain that it’s for their own safety.
@npub1cjf…sx4k @npub1amu…2lv5 @npub1sax…d9pz

2025-11-22 14:12:42 GMT

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Do you want help?

2025-10-16 00:31:47 GMT

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If it can help, here’s my process for writing good shell scripts (and not “God Shrek scripts,” as my autocorrect wanted me to tell you):
1. Type a few simple commands until something works;
2. Make them a bit more complicated to reduce the amount of manual work;
3. Copy the result from the shell history and make a quick and dirty script;
4. Refactor it to make it easier to read;
5. Run ShellCheck to make it more correct;
6. Bin it and rewrite the whole thing in Go.

2025-10-03 22:05:26 GMT

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I should have looked up the meaning of “hot take” before replying 😅.
Re-reading my original post, I see why you’re saying that, I made a poor code of words. By “not missing anything” I didn’t mean Hollow Knight is not worth playing, I meant that I don’t think it’s a prerequisite to understand and enjoy Silksong.
I would be interested in the option of other players on this, though.
#HollowKnight #Silksong

2025-10-03 21:55:46 GMT

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Hollow Knight can get very, very frustrating. So if you were to play it through in order to allow yourself to play Silksong, you might just end up throwing the towel.
Silksong is very hard too, but I feel like you get new abilities sooner and more often, the story is easier to follow, and also you’d be playing it at the same time as everyone else, it’s nice.
But maybe the hours I’ve put into Hollow Knight are affecting my appraisal of the new game.

2025-10-03 19:51:20 GMT

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Skip Hollow Knight and play Silksong directly, it’s more fun and I’m not sure you’d be missing anything.

2025-09-24 17:39:35 GMT

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I made that comment jokingly in reply to the suggestion to try and encourage people to lock their screen whenever they leave the computer, even at home, saying that if even you don’t always do it, people can be forgiven if they don’t. 😃

2025-09-24 17:36:03 GMT

@npub1vc3…axsh In case you’re wondering what a total stranger is saying about you in a weird language, I’m saying that, if I remember correctly, you told the story recently of finding suspicious keystrokes on your computer after getting a coffee while working from home, alone, and it turned out to be a balloon pushed by the ceiling fan. I apologise if I remember incorrectly, or if I confused you with another security expert.
https://tooting.ch/@oscherler/115260465699070206

2025-09-24 17:32:13 GMT

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Alors tu sais, pour le deuxième point, si même @npub1vc3…axsh ne verrouille pas sa session quand il est en home office et va se chercher un café, je crois que c’est peine perdue.
(Il a raconté il n’y a pas longtemps qu’en revenant à son bureau, quelqu’un avait tapé des caractères suspect sur son ordi, et qu’en fait c’était un ballon à hélium que le ventilateur avait poussé contre le clavier. Si je ne souviens bien. 😅)

2025-09-08 09:29:40 GMT

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The main problem with hosting your own Forgejo instance, as opposed to using Codeberg is that it’s much more difficult to remember how to pronounce it correctly.
@npub1fh7…ee83 @npub12r3…zz58

2025-08-15 10:09:57 GMT

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Ah, that sucks. Tesa is terrible. Here in Switzerland we almost only find their tapes, because of manufactured national pride probably. They’re interior to 3M’s in every aspect.

2025-07-18 14:13:04 GMT

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“Why don’t people run their own web site?”
Recently I saw someone here feeling a bit overwhelmed, because they wanted to run their own web site, were advised to use Hugo, read about it, checked the docs, and reached the conclusion that they first had to learn git and how to host it on GitHub Pages.
I checked the docs, and there’s nothing about hosting it “normally,” with a web server and FileZilla. Just CLI tools and CI/CD bullshit.

2025-05-17 22:46:16 GMT

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Wait, so they choose to disregard baryon conservation in order to honour energy conservation? So one could write another paper by doing the opposite? “Bla bla bla, that would break energy conservation someho, but that’s necessary because of baryon conservation.”

2025-05-17 15:56:25 GMT

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Wait, they get away with only 90 days in the US? And I was thinking my trolling might be exaggerated when I suggest the US has no regulations protecting individuals. [Laughs in Swiss.]

2025-03-11 22:15:50 GMT

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There’s was uv just before this, and I have a feeling there was another case of the same, but I can’t remember for sure.
@npub10fa…rdvy

2025-02-23 18:16:43 GMT

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Very nice.
Also, the shape of the sky in the middle looks like a space invader.

2025-02-22 12:12:14 GMT

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@npub1m89…009j What about people who use it to sound like native English speakers, because they get discriminated against if they don’t?

2025-02-13 14:57:45 GMT

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Ooooh, those seemed to be dark magic to me back in the days. I think I wrote one, eventually, to understand how they worked.

2025-01-18 18:19:08 GMT

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Do you even realise how gatekeepy you sound right now?
@npub1zkc…f8jz

2025-01-16 20:13:25 GMT

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All this time, I thought the Americano was by definition a watery mess. Not judging, you made me curious and I’ll have to educate myself and see how you make this beverage you describe and titillates my palate.

2025-01-09 20:05:55 GMT

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But it also works without piping into tee, right?

2024-12-27 20:57:23 GMT

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I’ve been meaning to stop using Gmail for two years. I don’t have the spoons. I have three accounts spanning two domains and used by two people, seems like an ordeal.

2024-12-27 11:14:54 GMT

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On a gouté ça cet été en Vendée. C’était bon.

2024-11-08 14:03:57 GMT

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If you have several machines in the same network you’d like to SSH to, you can decide to use one as an entry point, only open this one’s SSH port to the outside, and use it as a jump host to access the other ones. And if you configure it nicely in .ssh/config on the client side, it’s seamless.

2024-11-07 14:48:25 GMT

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I’m making a music player with RFID cassettes for my daughters. Custom PCB with an Arduino Nano, MP3 player, audio amp, laser cut enclosure with good acoustics.
https://tooting.ch/system/media_attachments/files/113/442/217/368/973/540/original/4aa0d73830177fd5.png
https://tooting.ch/system/media_attachments/files/113/442/217/809/831/835/original/9a28ec5522a96d0f.jpeg
https://tooting.ch/system/media_attachments/files/113/442/218/783/892/782/original/79599392cef701c7.jpeg
https://tooting.ch/system/media_attachments/files/113/442/219/689/103/830/original/9b587cfca11ca467.jpeg

2024-11-01 20:48:32 GMT

I bought clip-on reading glasses. With them, I can now read the text at the back of SanDisk SD card packages and crimp JST PH terminals, but I still can’t read the legend for setting the mode on my SN30 controller. So I guess fuck 8BitDo. Assholes.
#Glasses #RetroGaming #8BitDo
https://tooting.ch/system/media_attachments/files/113/409/660/733/800/482/original/a987eeb125b2139d.jpeg
https://tooting.ch/system/media_attachments/files/113/409/661/328/893/164/original/5535101f4c479801.jpeg
https://tooting.ch/system/media_attachments/files/113/409/661/849/207/748/original/3a8f991e215aa634.jpeg

2024-10-17 20:52:26 GMT

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I hate when they automatically balance quotes and braces. I have this habit of typing ()←, it’s as fast as the IDE doing it (faster, even, if it’s a fake IDE written in JS,) and I can read my own mind to know when I should not do it because I just want the one character. Even worse is when I select a word, type a quote, and instead of replacing the word with a single quotation mark, it keeps the word and surrounds it with quotes. I hate it.

2024-10-17 08:25:30 GMT

Apparently, I like to suffer, so I’m trying a new programming technique I call BAD: Blindfolded Arduino Development*.
Basically, I’m coding my firmware without being able to try it. I make small commits that compile, as usual, and once I’m home where my prototype is, I’ll try it, git bisect when it doesn’t work (because it won’t work,) and fixup the commits until it works.
I’ll keep you posted on how successful that is.
* I hope “blindfolded” is not inappropriate here. Let me know.
#Arduino

2024-09-16 19:17:10 GMT

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Please, don’t pollute the #RetroGaming and #DIY hashtags with AI bullshit. We are serious, decent people in both groups.

2024-09-12 09:13:41 GMT

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Are you going to go through the electrical ducts? How are you going to do the splices?

2024-09-09 16:32:06 GMT

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I bought the Xbox 360 for this game. Love it. The only console I ever had (and still have) is the original Game Boy.

2024-09-04 19:00:02 GMT

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Now should I make a very long thread, or would that be annoying to read? Or would people not see it because every time I post something new it’s necroing an old thread that would probably span months?
Or one thread per subject? With an additional pinned thread where I link to the first post of each sub-thread? But that would make it hard to read the whole thing.
Any idea on how to do this best?
#Arcade #RetroGaming #Nemesis #Konami #MiSTerFPGA #Advice #Fedi

2024-09-04 18:54:47 GMT

Looking for Fedi advice: I want to write about the making of the Nemesis core for MiSTer. Ideally, it would be a long blog post, very detailed, with how the board works, how the project started, and how core was made.
But I’ll never have the focus and energy to write it all before publishing it. So I’m thinking of posting bits of it here regularly, not necessarily in order, and not in final form. >>
#Arcade #RetroGaming #Nemesis #Konami #MiSTerFPGA #Advice #Fedi

2024-08-23 10:48:44 GMT

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Oooooh, fun! I can see the point. They should have slightly larger ones with a middle split for single ICs.

2024-08-23 10:23:25 GMT

Can anybody explain to me how 5x5 coloured breadboards are supposed to be used? #Electronics
https://www.reichelt.com/ch/en/breadboard-25-contacts-red-set-of-7-breadboard1-25-p282596.html
https://tooting.ch/system/media_attachments/files/113/010/837/352/996/914/original/0d225218ef1e308d.png

2024-08-19 18:16:24 GMT

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– First tilemap (without scroll or flips) displayed by cheating on a reverse-engineered GFX, bypassing four custom Konami chips whose function and implementation were unknown;
– First tilemap using the implementation of the actual custom chips;
– First sprites, those were much more complicated than tiles;
– Drastically improving the sound by fixing a very silly signing mistake.
I know I sound like an excited toddler. That’s the FPGA effect.

2024-08-19 18:04:31 GMT

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FPGAs are really fun. And a bit magical too. I still feel the thrill of the milestones of developing Nemesis for MiSTer:
– First sound out of an AY-3-8910 from the Z80;
– The 68k CPU running a test program we wrote in assembly to debug the main board using a jerry-rigged GFX that could only display the contents of the palette RAM;
– The game actually running on said jerry-rigged GFX, playing the demo sound effects and displaying the same colour palette seen in the MAME debugger;

2024-08-14 22:22:31 GMT

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What about a lapel mic? You don’t have to hold it with one hand, it’s made to be tucked on your shirt, unlike what modern YouTubers would like you to believe, and even if it’s in frame, it’s not visible.

2024-07-12 20:00:04 GMT

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Here are mine. I also had Duck Tales, and the first Castlevania, that I traded for the second because it was too difficult, and re-bought recently from a shop in Dubai, along with Legends (but they turned out to be bootlegs.) Of those I finished Gargoyle’s Quest, both Mario Lands, Cyraid, Duck Tales 2 back in the day, and recently the first two Castlevanias and R-Type. I also played Paperboy and Tiny Toons from friends. Balloon Kid has gone missing, as well as a 1000-game multicart.
https://tooting.ch/system/media_attachments/files/112/775/290/923/441/141/original/ed9d40b07446b138.jpeg
https://tooting.ch/system/media_attachments/files/112/775/291/332/313/239/original/3e74893a3f2b030c.jpeg
https://tooting.ch/system/media_attachments/files/112/775/291/936/532/473/original/d6701270e7a61441.jpeg

2024-06-21 06:08:49 GMT

Tired: Kill all the Bobs to make sure they’re not Pfhor decoys that will explode in your head.
Wired: Kill all the Bobs to make sure you don’t get a heart attack when they randomly yell “They’re everywhere” as you pass them by.
#Marathon #Retrogaming

2024-06-14 06:42:57 GMT

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I like the cerulean and pink one, and the sky blue and orange one. And the bookmark kicks ass.

2024-06-08 10:06:15 GMT

I completed the second mission of Desert Strike: Return to the Gulf for #MegaDrive. I first had to fail twice to map the secret items, otherwise you keep running out of fuel or ammo, or destroying civilian buildings.
It’s quite different in difficulty from the #GameBoy version. Jinking is basically useless to dodge enemy fire, but circling and shooting enemies is easier. The map is easier to read and less tedious to use, but the missions are harder.
#DesertStrike #Retrogaming #MiSTerFGPA
https://tooting.ch/system/media_attachments/files/112/580/438/973/112/048/original/e47d07b95205283b.jpeg

2024-05-31 11:34:14 GMT

I managed to complete the first campaign of Desert Strike: Return to the Gulf on Game Boy.
Now time for Dessert Strike: Return to the Fridge.
(Screenshots from mobygames.com.)
#GameBoy #RetroGaming
https://tooting.ch/system/media_attachments/files/112/535/478/673/315/104/original/510771a841b830c3.png
https://tooting.ch/system/media_attachments/files/112/535/478/961/633/698/original/23476ed80be07380.png
https://tooting.ch/system/media_attachments/files/112/535/479/054/492/088/original/e1eaf215f028eb40.png

2024-05-28 13:56:10 GMT

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It helps (the colours are my daughters’.)
https://tooting.ch/system/media_attachments/files/112/519/057/656/752/661/original/fc87f32a880cddb1.jpeg

2024-05-28 09:20:53 GMT

@npub1dxj…esa7 I found my gear. #CelticKnots
https://tooting.ch/system/media_attachments/files/112/517/975/219/712/112/original/86bc8578f9ae2c96.jpeg

2024-05-24 13:54:51 GMT

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I was a bit overambitious, I miscalculated that once you add the middle dots, it doubles the size of the grid. 😅
I like it because I can’t draw normal artistic stuff, I’m only good with geometric. I’m going to have fun with my daughter (8), and with my wife’s second cousin next time I see her.

2024-05-24 13:44:20 GMT

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It works, that’s amazing. (Not that I doubted.)
https://tooting.ch/system/media_attachments/files/112/496/361/945/320/889/original/778b4401b18de43a.jpeg

2024-05-24 12:26:19 GMT

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Excellent, thanks.

2024-05-24 10:17:54 GMT

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First one is not successful, but second one is not that bad. Somebody stop me.
https://tooting.ch/system/media_attachments/files/112/495/549/711/671/008/original/a7f8e877dad08dbc.jpeg
https://tooting.ch/system/media_attachments/files/112/495/550/205/168/927/original/bb44ca151f2be0b7.jpeg

2024-05-24 07:45:43 GMT

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Thanks for the inspiration, it’s fun.

2024-05-24 07:42:23 GMT

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https://tooting.ch/system/media_attachments/files/112/494/937/752/473/918/original/889575f0ded1d548.jpeg
https://tooting.ch/system/media_attachments/files/112/494/938/218/976/734/original/7168ee504a383e27.jpeg
https://tooting.ch/system/media_attachments/files/112/494/938/668/689/585/original/486c7eb5ba5638c6.jpeg

2024-05-24 06:59:42 GMT

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I’m gonna get there, sooner or later.
https://tooting.ch/system/media_attachments/files/112/494/770/352/471/946/original/ff088974e3b9957b.jpeg
https://tooting.ch/system/media_attachments/files/112/494/770/800/380/704/original/255ac26823a1bb31.jpeg

2024-05-23 15:25:39 GMT

@npub1dxj…esa7 Hi. Please rate my Celtic knot.
https://tooting.ch/system/media_attachments/files/112/491/098/056/587/286/original/e189bd39e6410849.jpeg

2024-05-22 13:58:00 GMT

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That gemstone is amazing.

2024-05-16 15:10:09 GMT

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Enough with Celtic knots. Move to Gordian knots already.