Hacker Public Radio

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https://www.instructables.com/member/masynmachien/






https://www.masynmachien.be/






https://www.instagram.com/masynmachien/












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The usual trio of
Dave
,
Kevie
and
Paul
meet up for the first time in person and are joined by
Al
,
Andrew
,
Joe
and Rainy. The meet up was for the
TuxJam Half-cut
live event in Manchester. Rather than the usual style of show this is a (mostly) unedited recording of the beers that we are trying and general yarns around the table. We were interrupted by a yelling numpty, a middle-aged boy racer and a tram (these were edited out), but otherwise the recording is pretty much as is. The show was recorded outside the
Sureshot Brewery Taproom
.







Connect with the guys on Untappd:







Dave






Paul






Kevie










The intro sounds for the show are used from:







https://freesound.org/people/mixtus/sounds/329806/






https://freesound.org/people/j1987/sounds/123003/






https://freesound.org/people/greatsoundstube/sounds/628437/










Upcoming beers:





Mild



Bitter



Pale Ale



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Sources (yes I used wikipedia, I am a hack, what else do you
expect)

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

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

Band/Artist website

https://merzbow.net/

Where to listen to or buy the album

Original Release (stream)

https://merzbow.bandcamp.com/album/pulse-demon

Remaster Release (stream)

https://merzbow.bandcamp.com/album/pulse-demon-remaster-reissue

Link to buy a physical copy new

https://www.relapse.com/products/merzbow-pulse-demon-reissue-2x12

Next album I'm reviewing, Lou Reed's Metal Machine Music

https://tidal.com/album/50021
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Webp is meant to replace GIF, JPEG, and PNG.

Its features include:



Lossy compression




Lossless compression




Metadata, including Exchangeable Image File Format (EXIF) and
Extensible Metadata Platform (XMP)




Transparency (an "alpha channel")




Embedded ICC (International Color Consortium) profile




Multiple frames (animation)




The typical expectation is to achieve equal or better visual
quality as a JPEG or PNG or GIF, but with a savings of 25% to 35%
on file size.

This is famously difficult to measure, because if you concede to
an equal file size, then the quality ought to be better, but there
is a "ceiling" to quality that can be detected by the majority of
human eyes.

So the metric is the unmeasurable: How good does it look to you?

If it looks as good or better, and the file size is smaller, then
it can be said that the format is superiour.

The best and most common test is to look at an image compressed
with JPEG or PNG compression, and then look at the same image
compressed by WEBP.

If you can't tell the difference, and the file size of WEBP is
smaller, then it's an improvement for disk space and bandwidth.

WEBP is an 8-bit format (based on the VP8 video codec) and lacks
support for 10-bit, 12-bit, or 16-bit colour.

Specifically, WEBP is YUV420, where Y is Luma (brightness and
darkness), and U and V are Chroma (colour).

Each 8-bit pixel in the UV (Chroma) corresponds to a 2-by-2 block
of 8-bit Luma pixels, or in other words, Chroma gets half the
resolution of Luma.

This is not uncommon, because how sharp an image appears to the
human eye is mostly (not entirely, to be fair) influenced by Luma.

Our eyes differentiate bright from dark better than our eyes
perceive subtle shifts in hue.

The ICCP chunk starts with a 4-byte declaration (the ASCII string
"ICCP"), then a 32-bit integer representing the length of the
payload, then the payload (the ICC profile specification according
to the International Color Consortium), and then optionally a byte
to pad the header.

The embedded ICC profile can define any old colour space you
want.

If none is defined, sRGB is assumed.

The libwebp library only parses the ICC profile, it
doesn't actually handle conversion.

That's left to the client application, which is why you might get
a notice sometimes in GIMP or a similar application about a colour
space mismatch.

(It's generally safe to convert to your current colour space, and
if it's not then you'd know it because you're working in a
multimedia production house where colour spaces and colour
profiles are significant.)

Converting to WEBP is available in most applications, at this
point, including Image Magick and the cwebp command.

Image Magick:


$ convert foo.tiff foo.webp

Or using cwebp with -q for a quality
0 (low) to 100 (high), and -o for output:


$ cwebp foo.tiff -q 60 -o foo.webp

Test images are available from a Mozilla test
suite.

Or you can test on a Hacker Public Radio image, such as the
screenshot of the upload form on the episode_show_notes
page:


$ wget https://hackerpublicradio.org/images/upload_form.png

$ cwebp upload_form.png -q 50 -o upload_form.webp

$ ls -gl

-rw-r--r-- 1 users 308K Sep 16 13:56 upload_form.png

-rw-r--r-- 1 users 79K Sep 16 13:57 upload_form.webp

References



Developers
Google




Salivity.github.io




Mozilla



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[WP2Shell is] a
pre-authentication RCE in WordPress Core
. The attack has no preconditions and can be exploited by an anonymous user in a stock install of WordPress with no plugins.








- from
wp2shell.com








Wordpress.org -
https://en-gb.wordpress.org/








Searchlight WP2Shell Website -
https://wp2shell.com/








CVE-2026-63030 -
https://nvd.nist.gov/vuln/detail/CVE-2026-63030








CVE-2026-60137 -
https://nvd.nist.gov/vuln/detail/CVE-2026-60137








OpenSSH -
https://www.openssh.org/








FileZilla -
https://filezilla-project.org/








GNU Tar -
https://savannah.gnu.org/git/?group=tar








GZip -
https://www.gzip.org/










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