Hacker News: hultner

New comment by hultner in "New way of making espresso with ultrasound"

hultner — Tue, 16 Jun 2026 09:40:35 +0000

I jumped on this at first as well. But to be honest if their target demographic is industrial production of coffee like beverages (like those Star Bucks soda can ”coffees”), well then it might not be so bad. I was thinking that a lot of flavour compounds of espresso breaks down quite rapidly while the drink cools, so the method of cooling all drinks to equal temperatures could be enough to skew the results regardless, but again for commercial coffee based soft drinks this is already the case. Headline is a bit misleading though.

New comment by hultner in "Making espresso with ultrasound"

hultner — Tue, 16 Jun 2026 09:36:56 +0000

Considering the vibrations from those capsule machines it might not be so far off

New comment by hultner in "New way of making espresso with ultrasound"

hultner — Tue, 16 Jun 2026 09:35:49 +0000

According to the article they see the main use for industrial scale production of coffee/espresso based drinks, in that regard it does make sense. For home use not so much even if there could be some niche market for cold espresso drinks at home, using less ice would allow for less dilution and faster than prepping and then refrigerate the coffee. I sometimes put concentrated ice coffee into my whey/oat shakes, but this is indeed very niche use even for me.

New comment by hultner in "IBM AI ('Bob') Downloads and Executes Malware"

hultner — Thu, 08 Jan 2026 19:07:05 +0000

Isn’t the problem that it’s supposed to not execute commands without strict approval but the shell stdout redirection in combination with process substitution is bypassing this.

New comment by hultner in "Claude Code 2.0"

hultner — Mon, 29 Sep 2025 23:01:06 +0000

A real CLI and not that joke they called a CLI before?

New comment by hultner in "I use zip bombs to protect my server"

hultner — Mon, 05 May 2025 21:20:07 +0000

Works fine on my 5 year old iPad Pro with an A12 processor.

New comment by hultner in "Show HN: TextQuery – Query CSV, JSON, XLSX Files with SQL"

hultner — Mon, 05 May 2025 20:39:15 +0000

Can you use that with for instance a postgres server? I thought it would only work with DuckDB (sqlite?) databases.

New comment by hultner in "Show HN: TextQuery – Query CSV, JSON, XLSX Files with SQL"

hultner — Mon, 05 May 2025 20:36:47 +0000

I actually have some apps still which I bought for life years back but doesn't offer that anymore. For instance blink shell for iOS devices.

New comment by hultner in "New iMac with M4"

hultner — Mon, 28 Oct 2024 16:34:24 +0000

You probably know this but it’s possible to buy a controller card for the panel on Ali Express and retro-fit into the case and use as a monitor if you are ready to retire the computer itself.

I’m contemplating doing this myself at some point but my maxed out 2019 iMac upgraded to 128GB ram and extra SSD is still plenty fast for me, actually feels subjectively quicker than my M2 Pro MacBook Pro with significantly less ram feel. I was a bit surprised as I had read all the hype of the responsiveness of the Apple M-machines.

New comment by hultner in "Number 16 (spider)"

hultner — Fri, 24 May 2024 11:27:58 +0000

Then I will put this one on my to read list. I actually re-read the book by Vinge recently after he passed.

New comment by hultner in "Number 16 (spider)"

hultner — Thu, 23 May 2024 07:05:22 +0000

I have not read this but I can recommend Vernor Vinges book “A Deepness of the Sky” on a similar theme. https://en.m.wikipedia.org/wiki/A_Deepness_in_the_Sky

New comment by hultner in "BIMI and DMARC Can't Save You: The Overlooked DKIM Exploit"

hultner — Fri, 17 May 2024 14:03:04 +0000

Interesting, does anyone have a list of known providers vulnerability to this in the past? I'm thinking big providers like G-Suite, Office 365, Zoho, Fastmail, etc.

New comment by hultner in "New startup sells coffee through SSH"

hultner — Thu, 02 May 2024 12:24:26 +0000

I can only talk from personal experience I did not trust most online payments around the turn of the millennium, but I did order quite a few things online. I usually payed either by collect on delivery or by invoice like regular good old fashioned mail-order, or by the early 00s VISA had something called e-card or similar, where you could generate a temporary one time use CC via a Java applet, this card was only valid for a day and could only be charged by a pre-determined amount, making the risk very low.

New comment by hultner in "Soul: A SQLite REST and Realtime Server"

hultner — Wed, 20 Mar 2024 13:38:21 +0000

Cool! Are you doing this mostly as a fun exercise or do you have a plan to provide something postgrest does not in the future?

New comment by hultner in "Soul: A SQLite REST and Realtime Server"

hultner — Wed, 20 Mar 2024 13:21:24 +0000

From what I can see this doesn't contain any kind of permission model, or authentication. At least what I could see in the documentation. I would say that RLS is one of the big killer features for postgrest which makes it so great for rapid prototyping something that's actually useful when exposed to the open internet.

New comment by hultner in "I need more USB power"

hultner — Sat, 04 Nov 2023 22:44:02 +0000

Isn’t this the reverse? Providing USB-C rather from a power source rather than powering from a USB-C supply.

New comment by hultner in "Development Secrets of the Original Kirby [video]"

hultner — Tue, 24 Oct 2023 21:59:46 +0000

Oh played Kirby’s Adventure so much with my cousin on the NES growing up. Fond memories.

New comment by hultner in "Removal of Mazda Connected Services integration"

hultner — Fri, 13 Oct 2023 20:20:06 +0000

This is what I would usually do as well, self-MiTM and analyze the traffic, reverse engineer from there.

New comment by hultner in "Show HN: ElectricSQL, Postgres to SQLite active-active sync for local-first apps"

hultner — Wed, 20 Sep 2023 18:19:19 +0000

I have a side project where this would fit perfectly. I’ve for a database in Postgres and my plan have been to sync the data into a local SQLite for a react-native app which needs to work offline and with flaky connections, to then later sync it back into PG. I have never gotten around to actually build the sync and it looks like this could solve that problem.

Does this play nice with RLS? I’m running everything on Postgrest at the moment.

New comment by hultner in "Expo – Open-source platform for making universal apps for Android, iOS, and web"

hultner — Wed, 26 Jul 2023 10:32:05 +0000

Would you mind sharing this? I’ve only used expo for experimental non-production apps so far but it works be great to be able to do this if ever needed. Reading this thread makes me a bit more hesitant about using expo.