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Daniel Fernandes

@dfern.eth.xyz

Software Engineer interested in chip design, compchem/bio, crypto & DWeb tech. B4: Illinois ECE / Stanford EE Also on Farcaster! (https://farcaster.xyz/dfern.eth)

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Latest posts by Daniel Fernandes @dfern.eth.xyz

shoutout to booze & snacks for the aloe water for my drive home

06.03.2026 19:14 πŸ‘ 2 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

have to live in a pronatalist city

27.02.2026 23:44 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
Preview
#36: An Honest Look at Urbit Everyone has heard of Urbit, but nobody really knows what it is.

^to be clear, this is an anti-endorsment of Urbit, I concur with the conclusion of this article: open.substack.com/pub/jayriver...

24.02.2026 06:57 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

You need bridging service like @helloxyz.eth.xyz or @ethlimo.bsky.social that will take DNS TXT=_atproto queries and lookup the answer on the ENS resolver!

24.02.2026 06:11 πŸ‘ 0 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
An XKCD-style webcomic featuring a horizontal line with several stick figures representing different decentralized social protocols, labeled from left to right in order of increasing "purity."
​The title at the top reads: "PROTOCOLS ARRANGED BY PURITY" with an arrow pointing right labeled "MORE PURE."
​From left to right, the protocols and their accompanying dialogue are:
​ActivityPub: A stick figure stands at the start of the line.
​ATProto: A figure with glasses says, "ActivityPub is just federated ATProto."
​DSNP: A figure holding a small octopus says, "ATProto is just federated DSNP."
​Farcaster: A figure holding a bubbling flask says, "DSNP is just Polkadot-parachain Farcaster."
​Nostr: A figure looking back toward the others says, "Which still requires BFT consensus. It's nice to be on top."
​Urbit: Located far to the right, separated by a large gap, a figure waves and says, "Oh, Hey, I didn't see you guys all the way over there."
​The comic satirizes the "purity testing" and elitism within decentralized tech communities, ending with Urbit positioned as the most extreme and isolated outlier.

An XKCD-style webcomic featuring a horizontal line with several stick figures representing different decentralized social protocols, labeled from left to right in order of increasing "purity." ​The title at the top reads: "PROTOCOLS ARRANGED BY PURITY" with an arrow pointing right labeled "MORE PURE." ​From left to right, the protocols and their accompanying dialogue are: ​ActivityPub: A stick figure stands at the start of the line. ​ATProto: A figure with glasses says, "ActivityPub is just federated ATProto." ​DSNP: A figure holding a small octopus says, "ATProto is just federated DSNP." ​Farcaster: A figure holding a bubbling flask says, "DSNP is just Polkadot-parachain Farcaster." ​Nostr: A figure looking back toward the others says, "Which still requires BFT consensus. It's nice to be on top." ​Urbit: Located far to the right, separated by a large gap, a figure waves and says, "Oh, Hey, I didn't see you guys all the way over there." ​The comic satirizes the "purity testing" and elitism within decentralized tech communities, ending with Urbit positioned as the most extreme and isolated outlier.

Qualified Reservations

24.02.2026 04:07 πŸ‘ 3 πŸ” 1 πŸ’¬ 3 πŸ“Œ 0

nevermind, I just vibecoded it

22.02.2026 22:08 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Can I run @pds.ls to browse a dev-env PDS?

I can see a list of dids on the localhost PDS, but I can't actually inspect any of them, because then I just get "missing PDS", no did document exists presumably, but I should be able to just skip that part and see the data anyway.

22.02.2026 21:42 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
A satirical medieval‑style cartoon showing two opposing factions. On the left, banners labeled with phrases like β€˜Our Blessed DID:PLC’ and names such as Swiss Shellco, ATScan Mirror, PLC BFT POA, and Bluesky PBC appear on castles and ships. On the right, an opposing group labeled β€˜Their Barbarous Snapchain’ features Delaware C Corp, Quilibrium Fork, Tendermint POA, and Neynar, Inc. The scene exaggerates the rivalry between two tech ecosystems by depicting them as warring kingdoms.

A satirical medieval‑style cartoon showing two opposing factions. On the left, banners labeled with phrases like β€˜Our Blessed DID:PLC’ and names such as Swiss Shellco, ATScan Mirror, PLC BFT POA, and Bluesky PBC appear on castles and ships. On the right, an opposing group labeled β€˜Their Barbarous Snapchain’ features Delaware C Corp, Quilibrium Fork, Tendermint POA, and Neynar, Inc. The scene exaggerates the rivalry between two tech ecosystems by depicting them as warring kingdoms.

sufficiently decentralized

22.02.2026 04:42 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

I don't support PoA so I don't support forking it. My solution is to just use data availability blobs like on ETH L1 or EigenDA. (And, hot take, ATProto should replace the firehose with a data avail layer too).

18.02.2026 19:38 πŸ‘ 2 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

rfk jr is going to put up stalin numbers, but he'll do it in terms of lives not saved. you can commit the most horrific crimes if you do it with bureaucracy

11.02.2026 00:38 πŸ‘ 103 πŸ” 21 πŸ’¬ 6 πŸ“Œ 0

Never forgot. HODL.

06.02.2026 19:20 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Misleading b/c SJ also has the largest difference between mortgage payments & owners' equivalent rent. Renting is way more affordable: buying is a proxy for speculating on tech equity, which has little to do with putting a roof over one's head. Elevating 'home ownership' over leasing is anti-YIMBY.

05.02.2026 08:00 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

I'm now in the "bitcoin is not crypto" camp, but not for the reasons bitcoiners think lol

04.02.2026 22:14 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Apparently the BSky relay won't index PDSs with >10 users w/o asking for an exception on Discord, I think that's an acceptable tradeoff for now, which is the same thing as the FID IdGateway still having an owner for now.

03.02.2026 23:32 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

TBF, all federated networks like BSky/Mastodon/Nostr decide control whether they want to federate with others which leads to fragmentation. Onchain social like FC & Lens don't have this problem, once you have your profile, it can't be taken away, and there's a single global index of all users.

03.02.2026 23:27 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

b/c the ecosystem was (& is still) iterating over antispam mitigation: what should the signup fee be?, the idea of storage rent (which was invented only recently), where do the fees go?, etc. In theory, you could have a DAO do this, but that can be it's own failure mode pre-PMF.

03.02.2026 23:27 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
Post image

I think about this a lot.

02.02.2026 19:30 πŸ‘ 28 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0

Hot take, but we don't need Rust thanks to AI. C++ plus Claude is all the borrow checking you need.

31.01.2026 07:24 πŸ‘ 1 πŸ” 0 πŸ’¬ 2 πŸ“Œ 1
Ray Kurzweil Apology Form

To:

Ray Kurzweil

the Internet

Date:

1/22/2025

Reason for behavior:

The media convinced

☐ me that deep learning hit a wall

☐

I was biased against

people who gave TED

talks

I was jealous of your hair

I thought the

I thought you were too into the Turing Test

nano stuff was weird

☐Mercury was in

retrograde

☐ I will hereby respect the Singularity and I will NOT talk down on exponential improvements in computing power

Ray Kurzweil Apology Form To: Ray Kurzweil the Internet Date: 1/22/2025 Reason for behavior: The media convinced ☐ me that deep learning hit a wall ☐ I was biased against people who gave TED talks I was jealous of your hair I thought the I thought you were too into the Turing Test nano stuff was weird ☐Mercury was in retrograde ☐ I will hereby respect the Singularity and I will NOT talk down on exponential improvements in computing power

31.01.2026 04:19 πŸ‘ 3 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

so true!

31.01.2026 03:11 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
A preview of the link attached

A preview of the link attached

AI Agents on Farcaster, open social + AI is going to be big.
farcaster.xyz/applefather....

31.01.2026 03:07 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

big if true

30.01.2026 22:45 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

also we don't need to 'donate to a PAC', we just need to use crypto, which supports DAOs/org/corps that do the lobbying on our behalf, so campaign finance disclosure $ amounts will never reflect the actual grassroots support

28.01.2026 21:00 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

eh, I've heard this before. the problem is that it puts the cart b4 the horse: crypto voters are already engaged and plugged-in, we don't need to advertise to ourselves, it's more strategic to move unengaged voters away from anti-crypto candidates

28.01.2026 21:00 πŸ‘ 0 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0

I agree! Will watch, but funding != voting. For example: Bloomberg & Tom Steyer spent a lot of $ and got 0 votes. I do agree crypto will be less of a motivating factor since policy is already on the upswing.

28.01.2026 20:02 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

if 'crypto voters' are fake, what does that make anti-crypto voters?

28.01.2026 19:56 πŸ‘ 0 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Neat

27.01.2026 22:26 πŸ‘ 8 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0

interesting, the Matcha Flip I'm used to is more vivid matcha green, but the ingredients here look tastier

26.01.2026 23:58 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

Hershey, Pennsylvania?

26.01.2026 22:26 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0

blockchain solves this

25.01.2026 23:28 πŸ‘ 0 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0