Hacker News Reader

Or, if you don't care about your data, add a RAM disk :P

adamzegelinon Is Fry’s Electronics in trouble?

Just got home from a visit to my local Frys (East San Jose) (tonight, around 7pm). My wife and I were probably 2 of 10 customers total, if that.

So many empty shelves. Every isle was capped with stacks of boxed paper reams.

Apple section had one MacMini and a broken Macbook. Car audio section was basically an empty shell, with only a few demo stereos and speakers left. The home theater section was an empty room. Toy section was empty.

The place is dead.

https://imgur.com/a/Ewfphsm

adamzegelinon Show HN: Flash replacement

Hardly a flash replacement.

adamzegelinon Show HN: Flash replacement

And Safari 11 too.

adamzegelinon Battle testing data integrity verification with ZFS and Btrfs

> "do not use" list

Care to link to this list. Just want to check that my board isn't on said list!

adamzegelinon Chinese Window Lattice and CSS

Impressive.

What I see is that CSS is slowly becoming more and more of a programming/Turing complete and/or graphics language, rather than simply just stylesheets.

adamzegelinon Show HN: My CV is also a bootloader

Seeing the comments about incompatibility above, I wonder if docx would be a better format for such a "polyglot format CV". AFAIK docx is a ZIP, and in a ZIP file the header/directory is located at the end of the file, so technically the beginning of the file can be "garbage".

(Not tested)

Edit: rereading, I also did not mean to imply the boot loader = garbage :) More that bytes that comprise a boot loader would look like garbage to the ZIP format.

adamzegelinon On the Road to Pure Go X11 GUIs

What happend to using native platform controls?

All these toolkits look out of place on any platform.

adamzegelinon Show HN: All Side Projects – side projects and apps for sale

Spam

adamzegelinon Using Java 9 Modularization to Ship Zero-Dependency Apps

Dunno if I'd call Java native. This is more like zero-dependecy Java apps — aka, you don't need to pre-install the JVM (and its "optional" adware on Windows).

adamzegelinon Show HN: Generate high-res images of code samples with Chrome Headless

You can embed PDFs in Keynote presentations.

adamzegelinon Linux Inside – How the Linux Kernel Works

Is there any documentation that talks about x86_64 and the modern UEFI boot process? This guide still talks about BIOSs, MBRs, real mode, 16-bit registers, etc.

adamzegelinon Lost Joys of the Screen Saver

Aerial [1] for macOS is nice and quite relaxing. It plays the fly-over/aerial screensaver videos from the Apple TV.

Note that it does download a whole bunch of HD videos -- don't start this on mobile broadband!

[1] https://github.com/JohnCoates/Aerial

adamzegelinon Linux 4.9 is out

Updates to the Direct Rendering Manager, nothing sinister.

https://en.wikipedia.org/wiki/Direct_Rendering_Manager

adamzegelinon A list of PostgreSQL libraries, tools and resources

MusicBrainz is powered by Postgres. You can download a snapshot of their database here: https://musicbrainz.org/doc/MusicBrainz_Database

It's a few gigabytes of data, compressed.

adamzegelinon Ask HN: Why don't more web projects start with a JVM stack?

As of JDK 7 OpenJDK and Oracle JDK can be considered equal.

The OracleJDK is built on top of OpenJDK. The only differences, according to a quick google, are some additional tooling, higher quality Java2D rendering and a different licence.

There is no difference in GC algorithms, hotspot optimisations, etc.

Tl;dr use OpenJDK

adamzegelinon OpenBSD laptops

> There’s also some very preliminary support for HID over IIC, for systems that attach keyboards and touchpads over an I2C bus.

Keyboards & trackpads over I2C? I liked the trend of moving everything to USB, even for internal devices.

adamzegelinon Ask HN: What hypervisor are you using?

I disagree. KVM has the best and most flexible passthough support that I've used.

Successfully running Windows 10 on top of Arch, with my GTX 970 passed though. Works without a hitch.

adamzegelinon Postgres features and tips

Why is everyone pushing CTE's for "readability" for Postgres queries? I've seen this come up multiple times in the past few months.

CTE's (WITH clauses) are optimisation barriers — the query planner in Postgres won't inline CTEs, but instead will materialise their result into a temporary table first, preventing qual (WHERE clause) push-down and other optimisations.

I know this because it bit me, hard — I went nuts and wrote a lot of the queries in a new system to use WITH clauses, for readability. Performance was atrocious, and required refactoring to inline all the WITH clauses as sub-SELECTS.

CTE's are useful, but should not be used to improve readability.

adamzegelinon Drawing Lines is Hard – an interactive look at GPU line rendering

A good example (a little out of date now, circa 2003) showing invariance in OpenGL implementations across hardware:

http://arek.bdmonkeys.net/bugs/invariance/index.html

adamzegelinon Poll: For your startup, do you use Django, Rails, PHP or Other?

  nginx
  Postgres, Cassandra
  RabbitMQ,
  Python (some backend services), Java (Jersey, MyBatis, Guice, + a lot of custom stuff)
  Angular

adamzegelinon SparkFun's migration from MariaDB to PostgreSQL

The PostgreSQL documentation. http://www.postgresql.org/docs/9.3/static/index.html

The introduction tutorial is concise but more than sufficient.

The reference guide is well written, laid-out and covers everything you need: the database server, its configuration and tools, the SQL language, its operators, data types and grammar, the built-in procedural languages, the low-level client library, and all the database internals (system tables, data file formats, network protocol, query optimiser, indexes, etc).

adamzegelinon Run Mac OS System 7 in your browser

Don't forget Lemmings!

adamzegelinon DoS exploit crashes iOS/OSX devices using WebKit

Unfortunately, it's a bug in CoreText, not WebKit. Either way, both frameworks are at the OS level.

Safari uses the OS-provided WebKit framework. An App Store update of Safari would only be able to change application-level features, not WebKit bugs.

adamzegelinon DoS exploit crashes iOS/OSX devices using WebKit

This isn't a bug inside WebKit. It's a bug inside Apples CoreText font rendering framework.

A `curl https://zhovner.com/tmp/killwebkit.html` in iTerm2 crashes as well.

    Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
    0   libvDSP.dylib                   0x00007fff9080ead6 0x7fff907f2000 + 117462
    1   com.apple.CoreText              0x00007fff8892cd5c TRun::TRun(TRun const&, CFRange, TRun::SubrangingStyle) + 850
    2   com.apple.CoreText              0x00007fff8892c9ee CTGlyphRun::CloneRange(CTRun const*, CFRange, TRun::SubrangingStyle) + 142
    3   com.apple.CoreText              0x00007fff8893b764 TLine::SetLevelRange(CFRange, unsigned char, bool) + 162
    ⋮
    8   com.googlecode.iterm2           0x000000010003ce63 -[PTYTextView(Private) drawRun:ctx:initialPoint:] + 99
    9   com.googlecode.iterm2           0x000000010003d498 -[PTYTextView(Private) _drawRuns:runs:] + 344
    ⋮
    41  com.googlecode.iterm2           0x0000000100001bd4 start + 52

adamzegelinon DoS exploit crashes iOS/OSX devices using WebKit

Not cool.

adamzegelinon Bootstrap 3 released

Which browser? Works fine for me in Safari 6 at any zoom level.

adamzegelinon Effeckt.css

Blurry for me to. Safari 6.0.5, Mac.

It's the combination of -webkit-transform and -webkit-backface-visibility that causes the blurriness. Wild guess: those attributes turn on 3D acceleration, and rendering is incorrectly offset by .5 pixels.

adamzegelinon Personal File Backup Server

    urlopen(self.url+"/list/"+self.username+"/"+self.password)

>.<

What?

Basically you need to run this over SSH or SSL to obtain any kind of security. Dropbox has security out of the box.

Dropbox also has: A GUI, a website UI, conflict resolution, support for folders, local sync. The list goes on.

As others say, this is very, very, very immature and incomplete.

I'd rather use Dropbox. Or `rsync`.

adamzegelinon Fancy Input - CSS3 text typing effects for input fields

Please do not use this.

The whole page flashes and flickers for me on Safari 6.0.2 on Mac OS X 10.8.2.

Input of extended characters also doesn't work. Option-[aeiou] doesn't enter any characters. Holding [aeiou] prints the base character but fails to update once a modifier is selected.

The antialising algorithm alternates between subpixel and greyscale, causing flickering changes to the boldness of the text.

All in all, very very broken.