Seth Michael Larson
LightNews LightNews
sethmlarson.dev
Seth Michael Larson
@sethmlarson.dev
2.8K followers 310 following 480 posts
Security and Fellow, Python Software Foundation 🐍 Minnesoootan, he/him, #Python, #opensource, #security #retrogaming

🌐 https://sethmlarson.dev
Posts Replies Media Videos
sethmlarson.dev
I've only been waiting for this moment for... 22 years? 🥲
Kirby Air Ride for the GameCube released in 2003.
November 8, 2025 at 2:53 PM
sethmlarson.dev
Any #PikminBloom players out there? The arrival of Ice Pikmin means that collecting complete sets of decor within an event just got more difficult... 😬

I created a #Python script to simulate the number of seedlings required before and after the change.

Read more: sethmlarson.dev/ice-pikmin-a...
Table showing the before and after Ice Pikmin percentage chances of completing a decor set for a number of seedlings collected. For example, if you collect 20 seedlings before Ice Pikmin you'd have a 70.4% chance of completing the set versus only 53.1% chance of completing the set with Ice Pikmin. This represents a 17.3% chance drop in likelihood of completing the set with this amount of seedlings.
November 6, 2025 at 2:13 PM
sethmlarson.dev
This is a funny short story about contributing to internet standards in unexpected ways, like drawing ASCII art. Thanks to @filippo.abyssdomain.expert firstly for the work you do in cryptography and the opportunity to uniquely contribute to PQC :)

Read more: sethmlarson.dev/drawing-an-a...
ASCII art of an X-Wing, TIE fighter, and imperial lambda shuttle
October 22, 2025 at 4:26 PM
sethmlarson.dev
🔁 Re(blog, tweet, toot, skoot, skeet)

sethmlarson.dev/reblog-tweet...
Railroad diagram showing the words "reblog", "retweet", "retoot", "reskoot", "reskeet", "repost".
October 16, 2025 at 1:50 AM
sethmlarson.dev
The “Nintendo Classics” collection has hundreds of retro games from Nintendo and Sega consoles from NES to GameCube. I created a dataset about these games and mapped them to real-life physical prices, with graphs and tables.

Read more: sethmlarson.dev/nintendo-cla...
Graph showing the total values of each platform available on Nintendo Classics over time.
October 7, 2025 at 3:12 PM
sethmlarson.dev
Just upgraded to iOS 26 and realized that Liquid Glass looks similar to #Pikmin UI...

I kinda love it haha 🫧
October 4, 2025 at 5:42 PM
sethmlarson.dev
Building a dataset about #Nintendo #Switch Online "Classics" collection, and now have approximate prices for each game in each collection. The #SNES collection alone is a wildly good deal.

What sorts of questions would you like me to answer about this collection?
Table showing columns for Platform, Total ($), number of Games, and price per game. Table data is: | NES | $1,980 | 91 | $21 | | SNES | $3,600 | 83 | $43 | | Game Boy (& GBC) | $1,615 | 41 | $39 | | Nintendo 64 | $1,130 | 42 | $26 | | Sega Genesis | $2,910 | 51 | $57 | | Game Boy Advance | $930 | 30 | $31 | | GameCube | $640 | 9 | $71 | | Virtual Boy | $2,580 | 14 | $184 |
October 2, 2025 at 12:56 PM
sethmlarson.dev
I'm picking back up my #Pikmin 2 quest to collect all unique treasures, this time working through PAL.

My "theme" for this play-through is "music", so I've elected to not collect the "Treasure Gauge" to avoid the constant ding-ding-ding ruining the atmosphere.

sethmlarson.dev/pikmin-2-int...
Table showing all treasures collected in JP, US, and PAL except for the "Prototype Detector" which is highlighted as missing for PAL.
September 9, 2025 at 12:28 PM
sethmlarson.dev
This is what the tool looks like: recipient(s), message, and a QR code generated locally in your browser.
August 29, 2025 at 1:16 PM
sethmlarson.dev
Did you know about “SMS URLs”? You can template a text message to recipient(s) from a hyperlink, similar to “mailto”

👉 sethmlarson.dev/sms-urls
SMS URLs containing a single recipient and optional body
August 26, 2025 at 3:27 PM
sethmlarson.dev
The #GameCube library had multiple #SEGA game collections: “Sonic Mega Collection”, “Sonic Adventure DX”, and “Sonic Gems Collection” with #Genesis and #GameGear games.

Let's compare to “Sonic Origins Plus” and the “Genesis collection” for Nintendo Switch Online:

👉 sethmlarson.dev/extracting-g...
August 19, 2025 at 2:42 PM
sethmlarson.dev
Pretty sure my favorite HTML element is ... preview for next week's article 👀

#sega#sonic#nintendo#gamecube#genesis#gamegear
Table showing Genesis games with prices, other columns labeled "Mega", "SADX", "Gems", "Origins", and "NSO".
August 17, 2025 at 3:54 AM
... preview for next week's article 👀

#sega#sonic#nintendo#gamecube#genesis#gamegear
sethmlarson.dev
5 of the 7 most expensive first-party #GameCube titles are coming to #NintendoSwitch Online “GameCube Classics” and that's a great thing for both digital and physical GameCube players.

👉 sethmlarson.dev/nintendo-swi...
Table showing Pokemon XD: Gale of Darkness, Fire Emblem: Path of Radiance, Chibi-Robo, Pokemon Colloseum, and F-Zero GX coming to NSO+ GameCube Classics
August 15, 2025 at 2:32 PM
sethmlarson.dev
Psssst... it's #FediDonutFriday over in the #Fediverse today! You could join the next one :)

sethmlarson.dev/fedi-donut-f...
August 15, 2025 at 1:48 PM
sethmlarson.dev
Worlds colliding! Lego and Pikmin Bloom are both highlighting specifically “Blue Hibiscus” 🌺💙

Happy community weekend fellow #PikminBloom players!
August 10, 2025 at 5:34 PM
sethmlarson.dev
“Sorry for speeding, I'm listening to the Sonic Adventure 2 OST” 🔵🟡

Randomly found in the wild. I approve of the music choice haha
August 8, 2025 at 11:02 PM
sethmlarson.dev
Grape Soda, Grape, Black Cherry, Blue Hawaii, Yogurt, Yuzu Lime, Key Lime Pie, Kiwi, Green Apple, Piña Colada, Lemon, Mai Tai, Tropical Smoothie, Orange, Mango Chamoy, Juicy Blood Orange, Juicy Strawberry, Mango, Strawberry, Watermelon, Juicy Peach, White Strawberry, Strawberry Icecream, and Lychee
August 4, 2025 at 10:50 PM
sethmlarson.dev
Purchased this t-shirt print from #FavoriteVegetable 🥦

favoritevegetable.com

I really love their art style, so this one is probably getting framed like a print :) There's still a few sizes left of their limited drops.

#AnimalCrossing #GameCube
A hard drawn aesthetic of a Nintendo GameCube with an Animal Crossing forest and character on top. The logo for "Animal Forest e+" is shown beside the diorama
July 14, 2025 at 5:45 PM
sethmlarson.dev
Have you seen me "playing my GameCube" on Discord recently? This Python script is how I've been automatically setting my #Discord status from my physical #GameCube (and how you can, too!)

👉 sethmlarson.dev/setting-disc...
Platinum GameCube with an attached memory card with a screen. The screen shows "Paper Mario: The Thousand Year Door". There's a red arrow pointing to a separate screen showing Seth's Discord status with "Playing GameCube. Paper Mario: The Thousand Year Door" and the cover art for the game.
July 8, 2025 at 1:53 PM
sethmlarson.dev
#GameCube × #Discord “Rich Presence” tutorial coming soon to my blog!

👀 sethmlarson.dev
Discord Rich Status showing Seth playing the game "Paper Mario and the Thousand Year Door" on his physical GameCube console.
July 3, 2025 at 9:28 PM
sethmlarson.dev
Preview of something I was hacking on last night 👀 #GameCube #Pikmin
Table showing Pikmin 2 (JP and NA) with last play times and total play times. Pikmin 2 JP had been played for 2+ hours, Pikmin 2 NA had been played 5+ hours.
July 2, 2025 at 3:46 PM
sethmlarson.dev
Here are the slides for my @openssf.org Community Day keynote “Security work isn't special”:

storage.googleapis.com/sethmlarson-...
Seth standing in front of a crowd presenting a talk "Security work isn't special" with the characters N-apostrophe-T are striked-out horizontally.
June 26, 2025 at 8:18 PM
sethmlarson.dev
Oh no...

Phantom Dependencies!! 👻

#OpenSourceSummit
Dark presentation hall with the words "Phantom Dependencies" in red spooky text. Photo credit: Dustin Ingram
June 24, 2025 at 10:13 PM
sethmlarson.dev
I reformatted the table for my #Pikmin 2 International Hoard article, now showing each region where I've collected the treasure and organizing primarily by Location rather than Region. Still not 100% happy with it, I liked showing the time of collection, too. So probably more tinkering to be done!
Table showing Pikmin 2 treasures for the "Shower Room" cave with the entire "Japan" region collected and rows for the US and PAL (EU) specific treasures not yet collected.
June 13, 2025 at 2:15 PM
sethmlarson.dev
I'm collecting all 242 unique treasures in #Pikmin 2 across the three regions (US, JP, and PAL). I've created this web page which automatically updates as I collect more treasures while playing on real #GameCube hardware.

👉 sethmlarson.dev/pikmin-2-int...
Table showing Pikmin 2 treasures, regions, and areas along with collected datetimes. Some of the treasures have been collected, some haven't yet been collected.
June 3, 2025 at 1:32 PM