Hacker News: Haemm0r

New comment by Haemm0r in "3.4M Solar Panels"

Haemm0r — Wed, 22 Apr 2026 18:17:18 +0000

Wrong, payoff time will be shorter. Why: During the next few years energy suppliers will "force" people, who feed energy to the grid into flexible pricing, so the reward for producing will be less and less ( current flexible prices https://markt.apg.at/en/transparency/cross-border-exchange/d... ) and the incentive for having a battery is getting stronger. For my situation that means almost zero energy costs from March to October. Even in December and January it covers 30-50% of the total energy demand (heat pump).

New comment by Haemm0r in "3.4M Solar Panels"

Haemm0r — Wed, 22 Apr 2026 15:21:33 +0000

The battery increases the upfront cost but also increases the roi very much (at least where I am living). You get way less money for feeding energy to the grid than you have to pay for withdrawing energy(as you said some utilities even limit/forbid feeding during peak hours). In my case that means (Austria): Sell 1 kWh - 0,04€ Buy 1 kWh - 0,25€

New comment by Haemm0r in "ThinkNext Design"

Haemm0r — Sun, 18 Jan 2026 08:37:20 +0000

I like the Thinkpads design. it's just timeless. However the bright red Lenovo logo flashing up while booting is very unaesthetic.

New comment by Haemm0r in "The Future of Flatpak"

Haemm0r — Fri, 23 May 2025 04:00:04 +0000

You don't need Flatpak at all to have these kind of usability issues, it is deeper than that: For example, if you mount a samba share in the Linux Mint Cinnamon file explorer it is just good to use it from there. Accessing files from the mounted share from "external" apps is a pita (shares are mounted to some obscure path(permission issues), the apps filepickers never have the information that a share was mounted, etc.). If you want usesful access to a samba share you have to mount it via terminal; This way at least the path to the share is short.

New comment by Haemm0r in "The Evolution of Tunnel Boring Machines (2023)"

Haemm0r — Sun, 05 Jan 2025 22:52:50 +0000

I see; you are competely right, I am not really familiar with the the technical terms and messed up with just literally translating "cut and cover".

New comment by Haemm0r in "The Evolution of Tunnel Boring Machines (2023)"

Haemm0r — Sun, 05 Jan 2025 14:38:56 +0000

Got a link for this? I am interested :-)

New comment by Haemm0r in "The Evolution of Tunnel Boring Machines (2023)"

Haemm0r — Sun, 05 Jan 2025 14:31:06 +0000

More information on cut and cover: https://de.m.wikipedia.org/wiki/Neue_%C3%96sterreichische_Tu...

(better translate from the german version, as it has more information and examples)

New comment by Haemm0r in "Love of cargo bikes is changing how we deliver goods in our cities"

Haemm0r — Sun, 22 Sep 2024 20:56:29 +0000

Maybe more important, however in my experience these things are neglected more often with ebikes than traditonal bikes, because the motor compensates the dirty chain or if the tyres could use some air... ;-)

New comment by Haemm0r in "MIFARE Classic: exposing the static encrypted nonce variant [pdf]"

Haemm0r — Fri, 16 Aug 2024 21:13:04 +0000

... or used the IP without licensing.

New comment by Haemm0r in "Third Places and Neighborhood Entrepreneurship: Evidence from Starbucks Cafés"

Haemm0r — Fri, 12 Jul 2024 04:01:30 +0000

Fully agree.

Just watched a episode of Friends yesterday. The cafe there could be the definition of a third place. ;-)

New comment by Haemm0r in "A rapid response system for elderly safety monitoring"

Haemm0r — Sat, 06 Jul 2024 22:10:37 +0000

Anyone sane can't actually favor such a system at home using cameras to a system with existing technology(check other comments). These systems maybe make sense in environments where cameras are already installed but not at home...

New comment by Haemm0r in "Meta 3D Gen"

Haemm0r — Wed, 03 Jul 2024 03:50:28 +0000

Knobs in cars are not a thing anymore... No need for 3D for that ;-)

New comment by Haemm0r in "RegreSSHion: RCE in OpenSSH's server, on glibc-based Linux systems"

Haemm0r — Mon, 01 Jul 2024 09:07:18 +0000

Question regarding this from a non-guru: - Is it correct that this only works for user root if login with password/key for root is allowed? - Is it correct, that this only works if the attacker knows a login name valid for ssh?

New comment by Haemm0r in "Next gen 3D metal printing"

Haemm0r — Thu, 27 Jun 2024 03:49:31 +0000

Optics may help to reduce the amount of lasers.

New comment by Haemm0r in "Next gen 3D metal printing"

Haemm0r — Thu, 27 Jun 2024 03:30:51 +0000

Just an anecdote: Rocket engineering is the only domain where safety factors <1 are actually ok.

(for some parts)

New comment by Haemm0r in "Designed to Crash: the story of Antonov An-28 HA-LAJ and its demise"

Haemm0r — Wed, 22 May 2024 17:53:18 +0000

>The original design supposedly had two screws, but was manufactured with one.

I'm sure many here heard the saying(especially when doing FMEA): One screw/bolt is no screw/bolt. ;-)

New comment by Haemm0r in "Zwentendorf Nuclear Power Plant: Finished in 1978 but never used"

Haemm0r — Fri, 17 May 2024 08:29:45 +0000

Or the Shutdown festival.

Additionally Zwentendorf is/was used for training for crews of same-type reactors.

New comment by Haemm0r in "An open source initiative to share and compare heat pump performance data"

Haemm0r — Fri, 12 Apr 2024 12:34:19 +0000

A big factor for the total energy consumption besides the heatpump is the rest of the heating system. For our house the yearly energy consumption of the heatpump is around 1.4MWh/y (for floor heating, warm water and cooling of the bedrooms in summer;this number is reported by the heatpump control system) but the hole heating system including all the pumps and so on is 2,55MWh/y.

New comment by Haemm0r in "WinBtrfs – an open-source btrfs driver for Windows"

Haemm0r — Sun, 07 Apr 2024 12:01:12 +0000

True dat.. :-)

Just wanted to point out, that it is "normal" for people to avoid the thing that did not work out for them in the past.

New comment by Haemm0r in "WinBtrfs – an open-source btrfs driver for Windows"

Haemm0r — Sun, 07 Apr 2024 06:53:03 +0000

Same could be said about cars: Why ever buy a [insert brand] again after you've been burned by its reliabity or other issues?

You probably just don't, as the alternatives are good and plenty.