I see. Not sure why it's needed as the previous version ships with the decompressed files anyway, but then I haven't used it in ages.
Digging around my old laptop a bit I found a version from December 2009 (as opposed to October 2009), which seems to include the decompression feature.

Attached is also the source code.

EDIT: Found the linux files too.

I didn't have much time to play through the levels, but at least I managed to finish all of the miniatures and half of the Rule 1 levels.
I've especially liked the levels focused around shimmiers so far!

As for the solutions to my levels, everyone solved Fast Food Forest the intended way.
For Frog Clog, nobody has the intended solution, but all parts of my intended solution are featured in someone's solution. I'm happy to leave this level a bit more open-ended, as I also don't see any elegant fixes. It wasn't meant to be a hard level.
For Underground Club, good find there, kaywhyn, I'm surprised we all missed that! Your solution still features the part of the idea that I care most about, so I might just leave it in.

I think the main use case for pasting (and also copying) is the multiplayer chat, that's the only instance where I can remember missing it. Maybe level titles as well. The other minor nuisance is that you cannot move the text cursor, it's always at the end of the typing field. That's maybe a bigger issue than copying/pasting.
I guess these are the downsides of rolling your own custom code for these standard UI things...

All solutions to Underground Club and Fast Food Forest are intended!

I kinda like Simon's solution to Frog Clog, but I decided to replace the platformer with a builder anyway, to eliminate it (see update topic). This also eliminates the other solution by Icho/Armani (which I like less).

Frame is the obvious choice given its common usage for the purpose, but there is the ambiguity between graphics and gameplay frame, and being explicit would be cumbersome I guess.

Tick is a good suggestion, still somewhat common for this kind of usage, and concise as well.

Age and count I would never guess that they could refer to ingame frames, they have so many other stronger associations.

Wow, this is an egregious backroute to Pommes Schranke which looks so painful to execute (when the intended solution is very simple to execute).
Here's a fix where I move the second fry 1 px to the right so your blocker-bomber can't blow through it anymore. (It's also in the update topic).

btw, Pommes Schranke refers to this dish: https://as2.ftcdn.net/v2/jpg/00/58/28/95/1000_F_58289557_DFySSo3h0A0KLKJZU64cuUjoglkM2ne6.jpg

IchoTolot's solution to Hanabi is a bit different from the intended one, but back when I watched it I didn't dislike it enough to fix it, so for now it's just an 'alternative' solution. Maybe I'll fix it in the future, not sure. Btw, Hanabi means 'Fireworks' in Japanese.

Yeah, I'm aware 'The last shall be first' is tedious, and was almost considering to not submit it here... But good job on solving it, looks intended. I wasn't aware of the precise bombing at the end allowing to save 2, that should be fixed though.

I went through most of the levels now (excluding the ones posted after the deadline), only missing Internection Cube (made some progress, but then moved on to stay in sync with what Simon was playing) and Magic of Lemmings (still don't have a good idea how to contain the crowd).

I think my favourites so far were Clown Fiesta (seemed completely impossible at first, a lot of interesting ideas to piece together, and yet the execution is easy and not much need for experimentation to see what works and what doesn't. Had a blast with this level.), Primitive Instinct (again, seemed impossible first and a lot of interesting observations to be made, but here a bit more experimentation was needed to determine how many builders are needed for what, and to discover that the lone flimsy root prevents building from the diagonal bar to the wall with 3 builders), and Skyfall (not hard to see what's going on, but somehow very elegant).
Splash or Splat seemed very interesting, but I might have skipped some of the intended steps; the Instrument was cute; Supreme LEMCO Safety Standard had a lot of interesting ideas to find but also a lot of fiddly placements and timings, felt super tight and I might have appreciated some extra leeway.

I especially had fun playing with runner skill.

I probably have found some intended solutions and backroutes.
I attached replays for all lix levels!

Glad to hear that! I was afraid "The Last Shall be First" may be a bit frustrating due to all the timings to get right. This one and Pommes Schranke are intended, for Hanabi I released a small update to prevent one element of your solution.