Interests in ML and social aspects of tech. Building For You feed: https://bsky.app/profile/spacecowboy17.bsky.social/feed/for-you Hobby project: linklonk.comhttps://bsky.app/profile/spacecowboy17.bsky.socialhttps://bsky.app/profile/spacecowboy17.bsky.social/post/3min5y5othc2kFor You is exposed to the internet through a VPS running on OVH. OVH is telling me that they detected a DDoS attack and started applying filtering. Not sure what to make of that. But happy to have OVH handling that.04 Apr 2026 02:13 +0000at://did:plc:3guzzweuqraryl3rdkimjamk/app.bsky.feed.post/3min5y5othc2khttps://bsky.app/profile/spacecowboy17.bsky.social/post/3mihw237prs2oI liked this thread: https://bsky.app/profile/gui.do/post/3mifatqw6is2c It highlights that the power of the platform is in the API access it exposes and controls. The great thing about ATproto is that most of the data is freely accessible: posts, likes, follows. 🧵 [contains quote post or other embedded content]02 Apr 2026 00:08 +0000at://did:plc:3guzzweuqraryl3rdkimjamk/app.bsky.feed.post/3mihw237prs2ohttps://bsky.app/profile/spacecowboy17.bsky.social/post/3mfwrtwiphc2wStarted an A/B test for this idea. On each feed load For You uses a random sample of 500 likes out of you recent 5000 likes. The idea is to make your recommendations more diverse. [contains quote post or other embedded content]28 Feb 2026 17:47 +0000at://did:plc:3guzzweuqraryl3rdkimjamk/app.bsky.feed.post/3mfwrtwiphc2whttps://bsky.app/profile/spacecowboy17.bsky.social/post/3mfwo27kqg22xFor You will be down for 10-20 minutes. I want to change my RAM speed in bios from 4800 to 6000 in case it helps the feed load a bit faster. For the last week I've been running Gnome from the fresh Ubuntu install and I need to go back to MATE.28 Feb 2026 16:39 +0000at://did:plc:3guzzweuqraryl3rdkimjamk/app.bsky.feed.post/3mfwo27kqg22xhttps://bsky.app/profile/spacecowboy17.bsky.social/post/3mffnl2rmqk26For You will be down for ~1-2 hours as I replace the system drive. The Kingston NV2 drive has been freezing up the computer - often for a minute at a time and sometimes indefinitely until a manual restart. I'm replacing it with a Samsung 990 Pro, which should be more stable.21 Feb 2026 22:16 +0000at://did:plc:3guzzweuqraryl3rdkimjamk/app.bsky.feed.post/3mffnl2rmqk26https://bsky.app/profile/spacecowboy17.bsky.social/post/3mf7jetbww22gFor You was down for 3 hours 40 minutes. The cause: the system SSD (Kingston NV2, SM2267XT) controller hanged and never restarted. It has been hanging periodically but always recovering in less than a minute. But this time it hasn't recovered. It looks like I will need to replace the system drive19 Feb 2026 11:44 +0000at://did:plc:3guzzweuqraryl3rdkimjamk/app.bsky.feed.post/3mf7jetbww22ghttps://bsky.app/profile/spacecowboy17.bsky.social/post/3mevupnpkrk2aHere is a very rough version of the For You Stats dashboard: linklonk.com/foryou It shows you 3 things: - how much you've been using For You - how many views and likes your posts got in For You - how your likes/reposts helped surface posts to other people in For You Feedback welcome15 Feb 2026 15:41 +0000at://did:plc:3guzzweuqraryl3rdkimjamk/app.bsky.feed.post/3mevupnpkrk2ahttps://bsky.app/profile/spacecowboy17.bsky.social/post/3meqnkdpt4226Added the "corater decay" parameter to the feed as described in the quoted thread. Values: - 0 has no effect. - 0.2 discounts second most recent like by 20%, third most recent like gets discounted twice by 20%, etc. - 1 - only their most recent like has any weight. [contains quote post or other embedded content]13 Feb 2026 13:49 +0000at://did:plc:3guzzweuqraryl3rdkimjamk/app.bsky.feed.post/3meqnkdpt4226https://bsky.app/profile/spacecowboy17.bsky.social/post/3meceyed2ts2mI'm thinking of building a logged in version of the For You playground: linklonk.com/bluesky It could have some personal stats and settings. What would you like to see/do on that page? https://linklonk.com/bluesky07 Feb 2026 21:39 +0000at://did:plc:3guzzweuqraryl3rdkimjamk/app.bsky.feed.post/3meceyed2ts2mhttps://bsky.app/profile/spacecowboy17.bsky.social/post/3mdzwqwoat22iYes, For You was down for 30 minutes - the computer hanged and I had to reboot it to bring it up again. Not clear what caused it. One option is that there is an issue with power management. My system drive already used to have random hangs for ~30-60 seconds due to power state transitions. [contains quote post or other embedded content]04 Feb 2026 13:03 +0000at://did:plc:3guzzweuqraryl3rdkimjamk/app.bsky.feed.post/3mdzwqwoat22ihttps://bsky.app/profile/spacecowboy17.bsky.social/post/3mdtamvzlqs2pA small tweak to reduce "Show less like this" in For You by 36% https://spacecowboy17.leaflet.pub/3mdtamporjc2p01 Feb 2026 21:11 +0000at://did:plc:3guzzweuqraryl3rdkimjamk/app.bsky.feed.post/3mdtamvzlqs2phttps://bsky.app/profile/spacecowboy17.bsky.social/post/3mdsnkgdppk2aThe For You feed will be down for a few minutes. I need to restart the computer to try resolve Steam segfaults (probably another nvidia driver update?) Will use this opportunity to enable RAM EXPO profile (4800 -> 6000) which got reset during the CPU upgrade.01 Feb 2026 15:29 +0000at://did:plc:3guzzweuqraryl3rdkimjamk/app.bsky.feed.post/3mdsnkgdppk2ahttps://bsky.app/profile/spacecowboy17.bsky.social/post/3mdkvnrspvs2r@jaz.sh either your dashboard has a glitch (more likely) or Bluesky has become super popular today (🤞) bsky.jazco.dev/stats29 Jan 2026 13:33 +0000at://did:plc:3guzzweuqraryl3rdkimjamk/app.bsky.feed.post/3mdkvnrspvs2rhttps://bsky.app/profile/spacecowboy17.bsky.social/post/3md7ast3iru2bTested today how much difference the 3D V-cache makes for For You and 3D V-Cache is indeed helpful. When I pin the algorithm to run only on CCD 0 (3D V-Cache) I get 25% faster runtime than when running on CCD 1 (standard cache) So it did make sense to get 9950X3D instead of the 9950X. [contains quote post or other embedded content]24 Jan 2026 22:21 +0000at://did:plc:3guzzweuqraryl3rdkimjamk/app.bsky.feed.post/3md7ast3iru2bhttps://bsky.app/profile/spacecowboy17.bsky.social/post/3md6mr2q7722rFor You has become the most liked feed: bluefacts.app/feeds/top Thanks everyone who gave it a like! Liking a feed may seem meaningless, but I think it does matter to the feed creators. It definitely has been motivating for me. Consider going over the feeds you have pinned and giving them a like!24 Jan 2026 16:22 +0000at://did:plc:3guzzweuqraryl3rdkimjamk/app.bsky.feed.post/3md6mr2q7722rhttps://bsky.app/profile/spacecowboy17.bsky.social/post/3md4ymdzktc26Wrapping up another For You experiment. This time I've been testing a change that spreads apart posts from the same author or posts quoting the same post. Context: https://bsky.app/profile/spacecowboy17.bsky.social/post/3mc63eaary22o [contains quote post or other embedded content]24 Jan 2026 00:49 +0000at://did:plc:3guzzweuqraryl3rdkimjamk/app.bsky.feed.post/3md4ymdzktc26https://bsky.app/profile/spacecowboy17.bsky.social/post/3mcu2ii6nys2q🤦‍♂️Sorry, For You was down due to a new code change that I implemented yesterday and I discovered the feed was down this morning.20 Jan 2026 11:28 +0000at://did:plc:3guzzweuqraryl3rdkimjamk/app.bsky.feed.post/3mcu2ii6nys2qhttps://bsky.app/profile/spacecowboy17.bsky.social/post/3mcnmk3mqkk2dFor You is down due to the migration to a new VPS server. Trying to figure out what is wrong. It was very close to working out but Claude went off rails a bit :)17 Jan 2026 22:03 +0000at://did:plc:3guzzweuqraryl3rdkimjamk/app.bsky.feed.post/3mcnmk3mqkk2dhttps://bsky.app/profile/spacecowboy17.bsky.social/post/3mcn2xfdi4s2qI'm using a VPS on OVH to host linklonk.com which serves the For You feed. The real processing is happening on my home PC and the VPS is mostly responsible for proxying the traffic. It means that the VPS can be fairly small: 2 vCores, 4GB ram, 80GB storage has been fine for my needs.17 Jan 2026 16:48 +0000at://did:plc:3guzzweuqraryl3rdkimjamk/app.bsky.feed.post/3mcn2xfdi4s2qhttps://bsky.app/profile/spacecowboy17.bsky.social/post/3mciv4g5u4s2rFun fact, playing Overwatch increases For You response time from 90ms to 115ms.16 Jan 2026 00:53 +0000at://did:plc:3guzzweuqraryl3rdkimjamk/app.bsky.feed.post/3mciv4g5u4s2rhttps://bsky.app/profile/spacecowboy17.bsky.social/post/3mc63eaary22oIn For You I started tracking the post author and the quoted post id. I want to use these to improve the diversity of For You. What do you think should be the distance: 1. between posts of the same author 2. between quotes of the same post ?11 Jan 2026 17:45 +0000at://did:plc:3guzzweuqraryl3rdkimjamk/app.bsky.feed.post/3mc63eaary22ohttps://bsky.app/profile/spacecowboy17.bsky.social/post/3mc4f7sk44c2aThis appears to be common feedback. Also, content with most "show less like this" appears to be NSFW content. I'm adding tracking of self-tagged and Bluesky moderation labels on posts. With this information I should be able to demote/filter NSFW labeled content if you have not liked such content. [contains quote post or other embedded content]11 Jan 2026 01:37 +0000at://did:plc:3guzzweuqraryl3rdkimjamk/app.bsky.feed.post/3mc4f7sk44c2ahttps://bsky.app/profile/spacecowboy17.bsky.social/post/3mbpnvaj4w225It would be great if Bluesky published the IP addresses that they use to make requests to feed generators. I'd like to increase the per-ip request limits. Right now I watch the Nginx error logs and add them one at a time. So far I've got: 67.213.161.34 209.249.133.122 38.120.64.66 147.123.139.10206 Jan 2026 00:07 +0000at://did:plc:3guzzweuqraryl3rdkimjamk/app.bsky.feed.post/3mbpnvaj4w225https://bsky.app/profile/spacecowboy17.bsky.social/post/3mb7xoxfdb224Made some improvements that should help For You handle such load spikes in the future: 1. 2x more powerful CPU 2. Bigger in-memory cache sizes so we don't need to read from the DB for >99% of the requests 3. Use a simpler version of the algorithm when under load [contains quote post or other embedded content]30 Dec 2025 18:20 +0000at://did:plc:3guzzweuqraryl3rdkimjamk/app.bsky.feed.post/3mb7xoxfdb224https://bsky.app/profile/spacecowboy17.bsky.social/post/3mb6gwib42s24Here are the results of the quoted experiment after 9 days: - 5.6% fewer users are pressing "show less like this" (statistically significant with p=0.95) - 7.36% fewer "show less like this" interactions (68,195 -> 63,173) - 1.64% more likes on posts (2,319,961 -> 2,357,938) [contains quote post or other embedded content]30 Dec 2025 03:47 +0000at://did:plc:3guzzweuqraryl3rdkimjamk/app.bsky.feed.post/3mb6gwib42s24https://bsky.app/profile/spacecowboy17.bsky.social/post/3mb2r5qei322aThe For You feed is going to be down while I'm upgrading the CPU from AMD 7900 (12 core) to AMD 9950X3D (16 core). This should increase how many users it can serve by ~50%-100%. If all goes well it should be back up in an hour or two.28 Dec 2025 16:40 +0000at://did:plc:3guzzweuqraryl3rdkimjamk/app.bsky.feed.post/3mb2r5qei322a