I enjoy probabilistic inference and modeling, gamedev and building robots. Currently working in the industry. Used to work on TensorFlow Probability. I also maintain the Allegro game library. My homepage: https://siegelord.nethttps://bsky.app/profile/siegelordex.bsky.socialhttps://bsky.app/profile/siegelordex.bsky.social/post/3muh4i2jhwk22Working on speeding up bitmap drawing in Allegro game library. The old (legacy) code was either skipping vertex buffers or nuking them every draw call (drivers are somehow okay with this...), the new code is a lot more careful. This is only a start, but promising so far! #opengl #c #gamedev01 Sep 2026 09:33 +0000at://did:plc:uttwrolgfa6evh765or3k6xb/app.bsky.feed.post/3muh4i2jhwk22https://bsky.app/profile/siegelordex.bsky.social/post/3mtvg6drla225Need for Speed 2 is a fun game. Personally, I always preferred the non-SE version since its cheat codes were slightly better. #retrogaming25 Aug 2026 08:38 +0000at://did:plc:uttwrolgfa6evh765or3k6xb/app.bsky.feed.post/3mtvg6drla225https://bsky.app/profile/siegelordex.bsky.social/post/3mtsxw6vbyc24A new render of Reliant. Model by Major Stress with my modifications, background by www.spacespheremaps.com I really enjoy the blown out look for space scenes. #startrek #blender24 Aug 2026 09:18 +0000at://did:plc:uttwrolgfa6evh765or3k6xb/app.bsky.feed.post/3mtsxw6vbyc24https://bsky.app/profile/siegelordex.bsky.social/post/3mtdxq3d5qs2xQuick sketch. Quelaag, but instead of a spider, it's a giant stoat. The lore is that this witch was paraplegic, and hated not being to move her legs, so she lobotomized a giant stoat and grafted herself onto its head. The ethereal swords are inspired by Henry's broadsword from No More Heroes. #art18 Aug 2026 10:05 +0000at://did:plc:uttwrolgfa6evh765or3k6xb/app.bsky.feed.post/3mtdxq3d5qs2xhttps://bsky.app/profile/siegelordex.bsky.social/post/3mtahj7jczk2zI am against vibe coding, but I needed a quick test for my local AI (Qwen 3.8 27B on AMD AI PRO R9700). Here's a (nearly) one-shot Lunar Lander, using the Allegro 5 game library. Took 3 hours, 400 Watts. A charming attempt at a game, all things considered. #localai #allegro17 Aug 2026 00:37 +0000at://did:plc:uttwrolgfa6evh765or3k6xb/app.bsky.feed.post/3mtahj7jczk2zhttps://bsky.app/profile/siegelordex.bsky.social/post/3mta2ovt3fs2kMy "limited edition" DT 770 PRO plastic brackets broke; evidently, limited referred to the lifespan of the parts. The rest of the headphones is metal, and this part fails often, so I could get measurements for a 3D printed replacement (glow in the dark PLA). I think it will be stronger. #3dprinting16 Aug 2026 20:47 +0000at://did:plc:uttwrolgfa6evh765or3k6xb/app.bsky.feed.post/3mta2ovt3fs2khttps://bsky.app/profile/siegelordex.bsky.social/post/3msurqbz7ss2lTaught my robot how to pivot in place. ...also gave it a hat. #robotics #diy12 Aug 2026 09:07 +0000at://did:plc:uttwrolgfa6evh765or3k6xb/app.bsky.feed.post/3msurqbz7ss2lhttps://bsky.app/profile/siegelordex.bsky.social/post/3mskterpai222Sketch of a humanoid robot's legs... I got tired of drawing the rest and I messed up the proportions of the far away leg. #art08 Aug 2026 10:10 +0000at://did:plc:uttwrolgfa6evh765or3k6xb/app.bsky.feed.post/3mskterpai222https://bsky.app/profile/siegelordex.bsky.social/post/3mrmgulihxs2eMade a conveyor belt clock. It's very impractical, but looks kinda cool I think. #3dprinting #diy27 Jul 2026 08:07 +0000at://did:plc:uttwrolgfa6evh765or3k6xb/app.bsky.feed.post/3mrmgulihxs2ehttps://bsky.app/profile/siegelordex.bsky.social/post/3mqtckoreac2vAnother day, another assembly broken in #FreeCad. There is a reason why I do %99.9 of my CAD work with #Blender (I recommend the MeasureIt extension).17 Jul 2026 08:13 +0000at://did:plc:uttwrolgfa6evh765or3k6xb/app.bsky.feed.post/3mqtckoreac2vhttps://bsky.app/profile/siegelordex.bsky.social/post/3mqibgiyjrs2oI'm not glad he's dead, but I'm glad he's gone.12 Jul 2026 22:53 +0000at://did:plc:uttwrolgfa6evh765or3k6xb/app.bsky.feed.post/3mqibgiyjrs2ohttps://bsky.app/profile/siegelordex.bsky.social/post/3mqgvowyrdk2hAfter a lot of effort, I finally got an RL trained locomotion policy working in the real robot. It's noticeably smoother than my manually constructed gait. A simple one line bug stymied me for the longest time, but is now fixed! #robotics #reinfocementlearning12 Jul 2026 09:51 +0000at://did:plc:uttwrolgfa6evh765or3k6xb/app.bsky.feed.post/3mqgvowyrdk2hhttps://bsky.app/profile/siegelordex.bsky.social/post/3mpui465xu22rThe Rust coreutils rewrite is an embarrassment to the Rust community and programmers in general. In their blind hatred of the GNU ideals, they stripped user freedoms while introducing bugs. Permissive licenses are tools of corporate oppression. All my Rust software is (L)GPL. #rust #gpl05 Jul 2026 02:00 +0000at://did:plc:uttwrolgfa6evh765or3k6xb/app.bsky.feed.post/3mpui465xu22rhttps://bsky.app/profile/siegelordex.bsky.social/post/3mop4hamefk24Recalled one of my older games, Crystal Commune. it's a little city simulator that uses GameBoy resolution + 16x16 sprites. It was a nice artistic challenge to convey things with so few pixels. #gamedev #pixelart20 Jun 2026 05:23 +0000at://did:plc:uttwrolgfa6evh765or3k6xb/app.bsky.feed.post/3mop4hamefk24https://bsky.app/profile/siegelordex.bsky.social/post/3mnqosvirus2kI made a little jig to splice PLA filament. A small silicon tube (that I cast) can be heated with a soldering iron, melting and forming the joint within. I made it a bit too thick, so it's hard to see the melting in action, but other than that it works well! #3dprinting08 Jun 2026 02:59 +0000at://did:plc:uttwrolgfa6evh765or3k6xb/app.bsky.feed.post/3mnqosvirus2khttps://bsky.app/profile/siegelordex.bsky.social/post/3mnfp5en4n22yRepercussion 3 This game was made for a 3 day gamejam (TINS) (+ some post jam fixes). I made all the graphics, music and code (no AI this time!). I did a lot of coding, but sadly, the game isn't that good! There's always a next time, I suppose! siegelord.itch.io/repercussion3 #gamedev #solodev https://siegelord.itch.io/repercussion303 Jun 2026 18:05 +0000at://did:plc:uttwrolgfa6evh765or3k6xb/app.bsky.feed.post/3mnfp5en4n22yhttps://bsky.app/profile/siegelordex.bsky.social/post/3mmq3bfhxis2hMy robot with its new and improved thick thighs. #robotics26 May 2026 03:44 +0000at://did:plc:uttwrolgfa6evh765or3k6xb/app.bsky.feed.post/3mmq3bfhxis2hhttps://bsky.app/profile/siegelordex.bsky.social/post/3mmmrczgsrk2tLess than a week until TINS gamejam (tins.amarillion.org/2026/). I am sprucing up my engine: yesterday I got navmesh path optimization working. I first tried a gradient-based solution with LBFGSB and Adam, but what worked best was an iterative relaxation solution. #gamedev #gamejam #tins24 May 2026 20:08 +0000at://did:plc:uttwrolgfa6evh765or3k6xb/app.bsky.feed.post/3mmmrczgsrk2thttps://bsky.app/profile/siegelordex.bsky.social/post/3mlecwi43as2yUhhh... is my starter meant to look like this (2 days in)? (This is teff, not wheat... I want to make some injera) #sourdough #starter #teff08 May 2026 18:04 +0000at://did:plc:uttwrolgfa6evh765or3k6xb/app.bsky.feed.post/3mlecwi43as2yhttps://bsky.app/profile/siegelordex.bsky.social/post/3mkgyh5qfes26Took apart a defunct Cue Reader (it's meant to detect COVID-19 infections, stupid thing never worked for me). Couldn't get inside the cartridge, where all the interesting bits are. So far the only reusable parts are probably the USB-C plug and maybe the wireless charging antenna. Lots of magnets.27 Apr 2026 02:09 +0000at://did:plc:uttwrolgfa6evh765or3k6xb/app.bsky.feed.post/3mkgyh5qfes26https://bsky.app/profile/siegelordex.bsky.social/post/3mkefmjosvs2bI got a centigram scale from American Weight Scales and 3D printed a little mixing cup so I can mix small amounts of silicone and cast small things, in this case a lens cap for my Rapsberry Pi webcam I built a few years ago. The mold is also 3D printed. #3dprinting #silicone26 Apr 2026 01:26 +0000at://did:plc:uttwrolgfa6evh765or3k6xb/app.bsky.feed.post/3mkefmjosvs2bhttps://bsky.app/profile/siegelordex.bsky.social/post/3mjlu5k2ww22xHomemade pumpernickel bagels (third try) #baking16 Apr 2026 07:10 +0000at://did:plc:uttwrolgfa6evh765or3k6xb/app.bsky.feed.post/3mjlu5k2ww22xhttps://bsky.app/profile/siegelordex.bsky.social/post/3mik55i3vgk2jApparently the repairs to the Lick Observatory are going well. I got news that they raised nearly $300K from donations. I visited the place just before the storm, it is a great monument to science. #lickobservatory #space #science https://www.youtube.com/watch?v=mEwnZ-YFEqE02 Apr 2026 21:20 +0000at://did:plc:uttwrolgfa6evh765or3k6xb/app.bsky.feed.post/3mik55i3vgk2jhttps://bsky.app/profile/siegelordex.bsky.social/post/3mhkmsgcnqc2qGot the robot to lift its feet in sim. Was going to try it on the real robot, but it stopped detecting my IMU after I removed an unused display: turns out that display was the only thing with a pull-up resistor to make the I2C bus work. #robotics #reinforcementlearning21 Mar 2026 08:35 +0000at://did:plc:uttwrolgfa6evh765or3k6xb/app.bsky.feed.post/3mhkmsgcnqc2qhttps://bsky.app/profile/siegelordex.bsky.social/post/3mgk6paougc27I play a lot of click-heavy games (e.g. Path of Exile), and it's really annoying for everyone in the room (including myself) to hear the constant clicking. Luckily, most mice use standard microswitches, and you can buy the silent kind. It's a simple soldering job to replace them. #soldering #mouse08 Mar 2026 10:58 +0000at://did:plc:uttwrolgfa6evh765or3k6xb/app.bsky.feed.post/3mgk6paougc27