I worked at a fab (photolithography specifically, shining angry lights into rocks to make them smart) and knowing what it takes to make chips it blows my mind that this tech is accessible to individuals, thats cool
If anyone happens to see this and can chime in. How does one who is interested in chip design and manufacturing get into the industry? I would be most interested in designing chip architecture (but anything higher or lower than that would be awesome as well), but working in a fab would be insane as well
I am a chip designer and I would say just go pursue EE or CE majors in university and the path will be there. Today chip companies are hiring like crazy and in a couple of years this hiring will continue to grow.@@randomsomeguy156
I worked in the PCB industry 30 years ago and was amazed when it became accessible to the general public, and now it the same with ASICs. MIND BLOWN!!!
When you immediately recognize a 'movement' on 32x32 pixels @ 3 FPS and 4 colors, in 6-8 frames total length, then that movement is really etched into mankind's brain.
I had suspected it was a Rick roll as soon as he said all of the pieces had a description except for that very one. Because people like to have a Rick roll pop up in unexpected places, in unexpected ways …
It’s not really a youtuber being capable of making their own chips, rather it is an open source project being able to produce a chip with lots of peoples designs on it, still at a rather significant cost with no real purpose other than education. The fab has probably cut them a really good deal. It’s not like you imply where a youtuber can just get any custom chip made, it is still not accessible except in this specific open source project.
Most TH-camrs that do tech and science related stuff are pretty gifted individuals, a lot of them work in the industry, a lot of them are self-taught professionals or both.
Doing any actually useful thing just starts in value and satisfaction where frivolous things top out. But obviously this is not a frivolous thing, as it's just a proof of concept and testing of the overall project whil will have plenty of use.
@@Beeti1 This way of thinking is called 'decadence'. A loss of reality caused by not being in touch with actual real needs, laying ground for an completely corrupted set of values. Dacadence leads to whole civilizations declining and dying.
@@conorstewart2214 Which is usually okay as a tool for education. It's a bit like these tiny satellite programs - CubeSats. Not much you can do in a 10x10x10cm satellite. But at least it gets sent to space. Last year they launched 400 satellites, and due to advances in designing micro-satellites, there are now more commercial and amateur projects on board.
@@conorstewart2214Computers got thier start because everyone was sharing thier designs. All the universities, and radio hobbists shared every detail. Thats how we get the idea of file formats and standards that allow the internet itself to work at all. Without that open share model computers would all have thier own file formats, some would use binary other trinary some might even use digitized analog adders but none would be compatable with each other.
I’m currently taking an ASIC class in grad school and I honestly will prolly still take this course. It’s amazing how education at university never seems to match up to classes taught by people with such passion
It's so crazy that we can get custom silicon these days(granted, with a 9 month lead time). Wouldn't be surprised if this gets better and better and in twenty years, we'll have places like PCBway giving you custom chips to go with your custom boards.
No way ... WAY! FABulous! What a smart and fun project! Brilliant and very inspiring! THANK YOU for keeping to create such fun stuff! Keep right on creating!
This is a great project from many points of view. Just Great. !!! I'm Senior electronic Design engineer myself - and love your inspiring projects , openness with misshapes and the story telling. Just, Thanks.
@@ArneChristianRosenfeldtWouldn't the 0ohm resisters act, if a bit flawed, like a fuse? Granted, the tolerance for it would have to be lower than what you're powering with it...
@@rya3190 I was more thinking if on boot up you could set the power limits for each tile ( most of the to zero ). Why else would they care if a single tile can pull down the whole chip? Isn’t there really a power management?
Count the pins! I wonder how the surge protection works. Maybe we want to do intense compute and need a lot of current in one tile, while the other is just sram?
I really wanted to do tiny tapeout after hearing about it a bit ago, but I've been a bit too busy. Hopefully it'll still be going when I can get to writing something in verilog.
@@GodzillaGoesGaga the fab process is open source and all projects so far seem to be typical homework assignments. I don’t even know what the cutting edge is right now, but it seems to deal with scaling to many transistors. Far more than you can buy here.
One step closer to open source hardware and I LOVE YOU FOR IT! One step closer to open source touchscreens, e-ink displays, and maybe eventually even cpus/gpus! 😃
Usually ~50'000$+, but this company is starting at just 10k$ and the guys are splitting the cost between 160 people and allocating them even smaller part of the chip so it's just 300$ per design.
@@ArneChristianRosenfeldtI can't possibly imagine that they didn't produce at LEAST double the amount they needed - the expensive part is creating the masks and setting everything up - running the scanners 1,2 or 10 times costs basically the same.
Nice one, bitluni! Great to see, and thanks for sharing this level of detail :) I hope you do more Tiny Tapeout submissions in future! Maybe time to try an analog layout...? :)
hoping someday we can manufacture ASIC's from home. would be incredible to have even the more basic of minimum-required tooling to make something without relying on a few major companies that are politically involved. even if not at home - like some others have said - PCBWay is a great example of advances in electronics/embedded engineering for the masses at low expense!
Nice I was just about to get a small design made at Aisler, thanks for the five bucks. Tinytapeout is such a cool initiative too, if I ever have an idea for an ASIC now I can actually consider getting it made, if I can remember any of the VHDL from uni >.>
Just came across a video on Twitter of "Touchable Flames". The "flames" are made from water vapor and red led lights. It looks like flames, even while putting your hands through the misting.
For TT02 the analog part (filters) would have not been possible. I've heard they want to include analog capabilities in the future revisions though! Someone is surely going to short the SID hoarders ;)
@@eitantal726 The SID schematics have been reproduced from the die shots. I can see that the filter uses opamps and FETs with gates driven by DACs to control cutoff. This is unfortunately a no-no for direct implementation, but if one were instead to implement a right biquad filter and a lookup table for its parameters (to perform the filtering like DSPs do) I guess it could work. Sadly the digital filter part would probably exceed the other (oscillator + ADSR) in complexity.
Maybe through technical advances, economies of scale and multi-project wafer services, one day silicon production can get similar turn-around like what happened in the PCB industry.
It would take a lot of changes. Making stencils for all the layers is really expensive. You can’t “print” them out like with PCB where tracks are very wide (certainly compared to features in a chip). The tools used to dope silicon and deposit SiO2 are also not cheap. It would definitely be cool to get to that point. But it’s pretty far away for now
Did you use some kind of special fluid to safely remove soldered parts? If so, I have never heard of such a product and would be VERY interested to know what it is!
He just uses flux paste that helps the solder to flow better. Then you have to heat the solder to melting temperature again to remove the chip. I guess you could try to find some very specific acid that only attacks the tin in the solder, but i don't think this exists and it would just eat away all the metals, including the legs of the chip or other components.
is tinyTapeout only RTL, or can you do custom layout? also what tools are used for layout, i use cadence for work but that is anything but free and open source lol
Europractice offers similar service, and the costs per design is few thousand euros, so I imagine it's similar here (You are paying for multiple units because it's one whole wafer peen batch of projects, plus bonding and packaging service which is pretty expensive)
I found the price, it is ten k for a project and if you split the cost it is less, so in the tinytapeout it comes down to $150 per design and it's $50 per sq mm from the chip fab, or something like that. So actually quite affordable compared to what the prices were in the past.@@ninethirtyone4264
the bit I dont get the you used padding at the end of the file on the chip? why did you not every single zero and one of the avalable space on the chip, allotted to you? seems such a waste, there not much space to start with, and not using any bit of it,
This is really really really cool, I am just sad you cant order quantities. $300 for a custom (really small) chip is awesome, just wish I could order 1000 more for $1 each.
As this behaves like a rom, wouldn't it had been interesting to create a "rom", which returns a different image every time you read it? Then you could still animate something (by just reading/displaying the picture in a loop from the ESP32), but really make use of the ASIC
I'm more interested in SIP and modules. You have dived much deeper. Actually, it would be enough if I gathered the ready-made products under one roof. (Especially in SIP form and Esp32 s3 and sx1262 chips)
6:42 - I might have chosen a 91K with a 100K for the divider to get the 1.8V from the 3.3V, but maybe that would have been an extra component value that you didn’t care to have to “handle”
Kiloohms?? That would be way off, if the chip draws any current on the 1.8V net. Even the 100 Ohm voltage divider is far from ideal, as the current draw on a logic core supply is not static. So you modulate a voltage ripple on the core supply voltage thanks to the resistors. Depending on the chip, not meeting the core voltage specs and not using a stable supply voltage can give you all kinds of errors and issues that are super hard to track down. Worst case, it could even kill the core, and for a chip that you can't just order replacements, i'd think twice about the risk of destruction because of lazy circuit designs.
The best choice of use for a custom ASIC XD I mean, you could have made a VGA controler, or anything, and no, it's a Rick roll (without sound), glorious!
I worked at a fab (photolithography specifically, shining angry lights into rocks to make them smart) and knowing what it takes to make chips it blows my mind that this tech is accessible to individuals, thats cool
"Shining angry lights into rocks to make them smart" needs to be on a t-shirt 🤣
@@mllarson We then trap lightning in the rocks to make them think.
I worked for AMAT. Someone said, "8000 people looking for a new job."
If anyone happens to see this and can chime in. How does one who is interested in chip design and manufacturing get into the industry? I would be most interested in designing chip architecture (but anything higher or lower than that would be awesome as well), but working in a fab would be insane as well
I am a chip designer and I would say just go pursue EE or CE majors in university and the path will be there. Today chip companies are hiring like crazy and in a couple of years this hiring will continue to grow.@@randomsomeguy156
I worked in the PCB industry 30 years ago and was amazed when it became accessible to the general public, and now it the same with ASICs. MIND BLOWN!!!
What changed?
When you immediately recognize a 'movement' on 32x32 pixels @ 3 FPS and 4 colors, in 6-8 frames total length, then that movement is really etched into mankind's brain.
Lmao! The moment I saw it I went "fuck you!"🤣 it's crazy that we can immediately recognize what it is haha
@@BirkinIdkit truly is!
That’s crazy but how
I an instantly going to guess that it’s either a rickroll or bad apple
I had suspected it was a Rick roll as soon as he said all of the pieces had a description except for that very one. Because people like to have a Rick roll pop up in unexpected places, in unexpected ways …
The fact that photolithography is now accessible enough that a youtuber was capable of making their own chips... blows my mind!
It’s not really a youtuber being capable of making their own chips, rather it is an open source project being able to produce a chip with lots of peoples designs on it, still at a rather significant cost with no real purpose other than education. The fab has probably cut them a really good deal.
It’s not like you imply where a youtuber can just get any custom chip made, it is still not accessible except in this specific open source project.
I think you underestimate yotubers power.
Such times, much progression, right..
Most TH-camrs that do tech and science related stuff are pretty gifted individuals, a lot of them work in the industry, a lot of them are self-taught professionals or both.
You can do it in your garage using older fab like nmos and pmos with micron feature sizes
Like photo etching a pcb
It would be much more mindblowing to do something else, useful, than a tiny ROM chip.
Gotta love that the QC sticker reads "Accetpable" at 6:35!
Good spot! It's one of our standard mispelt qc stickers!
Someone needs to add QC to the QC stickers.
QCeption
well yeah, you have to control the Quilaty!
There's no better purpose in life than putting so much effort into something so frivolous.
What’s life without whimsy?
Doing any actually useful thing just starts in value and satisfaction where frivolous things top out. But obviously this is not a frivolous thing, as it's just a proof of concept and testing of the overall project whil will have plenty of use.
Actually is massive Karma
@@elmariachi5133 - No, it's frivolous.
@@Beeti1 This way of thinking is called 'decadence'. A loss of reality caused by not being in touch with actual real needs, laying ground for an completely corrupted set of values. Dacadence leads to whole civilizations declining and dying.
That’s such a smart idea! Doing a group buy for silicon is insanely clever! 🤯
The only problem is the small size of the design and that everyone gets access to your design.
@@conorstewart2214 Which is usually okay as a tool for education. It's a bit like these tiny satellite programs - CubeSats. Not much you can do in a 10x10x10cm satellite. But at least it gets sent to space. Last year they launched 400 satellites, and due to advances in designing micro-satellites, there are now more commercial and amateur projects on board.
No it's just a niche at this point
@@conorstewart2214Computers got thier start because everyone was sharing thier designs. All the universities, and radio hobbists shared every detail.
Thats how we get the idea of file formats and standards that allow the internet itself to work at all.
Without that open share model computers would all have thier own file formats, some would use binary other trinary some might even use digitized analog adders but none would be compatable with each other.
@@conorstewart2214 that's not a problem, it's a feature
Rideshare for ASIC, this is fascinating and hilarious and wholesome all at the same time, thanks so much for broadening our horizons.
I’m currently taking an ASIC class in grad school and I honestly will prolly still take this course. It’s amazing how education at university never seems to match up to classes taught by people with such passion
We hope tiny tapeout gets used by lots of universities!
It's so crazy that we can get custom silicon these days(granted, with a 9 month lead time). Wouldn't be surprised if this gets better and better and in twenty years, we'll have places like PCBway giving you custom chips to go with your custom boards.
Rick can be proud to the first publication on the new ASIC media.
No way ... WAY! FABulous! What a smart and fun project! Brilliant and very inspiring! THANK YOU for keeping to create such fun stuff! Keep right on creating!
This is a great project from many points of view.
Just Great. !!!
I'm Senior electronic Design engineer myself - and love your inspiring projects , openness with misshapes and the story telling.
Just, Thanks.
Always check for shorts with an ohm meter before powering on a board. I'm sure you've hear that a million times by now.
A fuse would even protect if you drop a metal wire .
@@ArneChristianRosenfeldtWouldn't the 0ohm resisters act, if a bit flawed, like a fuse? Granted, the tolerance for it would have to be lower than what you're powering with it...
@@rya3190 I was more thinking if on boot up you could set the power limits for each tile ( most of the to zero ). Why else would they care if a single tile can pull down the whole chip? Isn’t there really a power management?
Man, I would love to be able to make SNES and NES ASIC chips for a custom clone console.
Count the pins! I wonder how the surge protection works. Maybe we want to do intense compute and need a lot of current in one tile, while the other is just sram?
A similar project for a handful of consoles and retro pcs we have working on fpgas would be a novel idea.
Can't you simulate those old things on a 328?
@@Ironclad17 you mean to re-use the design as written in VDHL ? Mister Cores get updates all the time. So better stick with pre 1990
This is how advertising should be done. In the context. With interested audience. By example.
Hmmm sounds like an idea, but how about another decade of focusing on gender, race politics, etc? In every ad? No?
I really wanted to do tiny tapeout after hearing about it a bit ago, but I've been a bit too busy. Hopefully it'll still be going when I can get to writing something in verilog.
Look at the “Tiny Tapeout Chips” section in the sidebar. They’ve got chips planned every few months at least until the end of 2024.
It’s not a waste of resources.. you are building up your skills and knowledge. Fantastic job.. so exciting..
This is a COOL idea! And open source... WOW!
MOSIS has been doing this since the 1980s which favored US student engineers taking VLSI design courses, I think Europe had a similar project too.
But isn’t it great that now you don’t have to sign an NDA?
@@ArneChristianRosenfeldtand you can use free and accessible open source tools!
@@ArneChristianRosenfeldt You have to open source your project though. Not particularly good for development of new technology.
@@GodzillaGoesGaga the fab process is open source and all projects so far seem to be typical homework assignments. I don’t even know what the cutting edge is right now, but it seems to deal with scaling to many transistors. Far more than you can buy here.
Fun fact: the human brain is able to recognize certain things instantly, such as faces, your own name, and the rickroll meme.
Where'd you get the solder paste stencil? Does Aisler provide those with their orders?
You could've... But you... TinyTapeout really is amazing. Love it!
a very interesting project :)
also a lot of funny moments :) Those revisions are the bane of every PCB designer :) Keep dong this, you are great !!!!
One step closer to open source hardware and I LOVE YOU FOR IT! One step closer to open source touchscreens, e-ink displays, and maybe eventually even cpus/gpus! 😃
Fun idea and very informative! whimsy for the win.
What a huge accomplishment! Well done!
Never had leading edge tech been put to a better use. Well done, Sir.
Well, that's not really the leading edge technology 😂
Is that an ESD safe fingerprint on the chip when you are assembling it? 😆
wow, Großartig, Glückwunsch, da geht mir's Herz auf als Techniker, bin begeistert
Just imagine if you uploaded the chip design only to discover that you forgot to place one junction
Imagine that simulation went a long way and this for top students who don’t make mistakes anyway.
that's why we encourage everyone to verify!
0 to asic and tiny tapeout is amazing. Just think of what's to come in the future. 😁
Amazing that this is so accessible.
Thank you for your chary spirit, you give me motivation every time I watch your videos
Anyone knows how many ASICs you get for participating?
such an awesome project!
I heard that multiplying numbers is hard for processors. So what if someone made a multiplication table chip? Would that speed up computers?
Interessantes Video! Kannst du auch zeigen mit welcher Software und wie du deinen chip design entwickelt und getestet hast?
I'm really impressed we can do this in our modern age, I thought they only let the biggest and brightest minds to have a crack!
Nice video! This makes me want to learn more about ASIC
So how much would the cheapest fab charge for my own ASIC?
They were part of a marketing - research -google - stunt.
Im sure this is supposed to be super expensive
Its a $300 buy-in
Usually ~50'000$+, but this company is starting at just 10k$ and the guys are splitting the cost between 160 people and allocating them even smaller part of the chip so it's just 300$ per design.
In the future I hope there will be a discount for additional chips. Now you only get 1
@@ArneChristianRosenfeldtI can't possibly imagine that they didn't produce at LEAST double the amount they needed - the expensive part is creating the masks and setting everything up - running the scanners 1,2 or 10 times costs basically the same.
That was also probably the world's nerdiest rick roll!
Loved it!
Nice one, bitluni! Great to see, and thanks for sharing this level of detail :) I hope you do more Tiny Tapeout submissions in future! Maybe time to try an analog layout...? :)
What model is your SMD reflow heater? Would you recommend it for purchase?
hoping someday we can manufacture ASIC's from home.
would be incredible to have even the more basic of minimum-required tooling to make something without relying on a few major companies that are politically involved.
even if not at home - like some others have said - PCBWay is a great example of advances in electronics/embedded engineering for the masses at low expense!
A wild communist furry?
Nice I was just about to get a small design made at Aisler, thanks for the five bucks. Tinytapeout is such a cool initiative too, if I ever have an idea for an ASIC now I can actually consider getting it made, if I can remember any of the VHDL from uni >.>
Thank you for using our service :)
the selection idea is genious!!!
Wow, fun and cool project bitluni!
I was like "if it isn't a rickroll I'll write a mad comment" the moment he mentioned it being something graphical
I was not disappointed :D
Perfect sample choice.
Could one take a Mister FPGA core and build an ASIC form it? Can it do analog circuits? Would a C64 SID replacement be possible?
How much money required for asic?
This is such a cool concept.
In the history of humanity, This will be remembered as a day when we all got rick-rolled by the first custom home-made ASIC.
Just came across a video on Twitter of "Touchable Flames". The "flames" are made from water vapor and red led lights. It looks like flames, even while putting your hands through the misting.
Great work! That Timelapse music sounds straight out of Sim City
10:10 the most billiant idea I've seen since I woke up today.
loved the video! Thanks Luni!
So even as a group buy - what did one of those chips cost you :)? (and how much cheaper would it have been if you ordered more?)
Did anyone think of implementing a SID in one of the desings?
For TT02 the analog part (filters) would have not been possible. I've heard they want to include analog capabilities in the future revisions though! Someone is surely going to short the SID hoarders ;)
The TH-cam video from TT shoes an R2R DAC. Put those in 3 of the tiles. How does analog go over the bus?
@@MichalKobuszewski How well do you know the existing SID?
@@eitantal726 The SID schematics have been reproduced from the die shots. I can see that the filter uses opamps and FETs with gates driven by DACs to control cutoff. This is unfortunately a no-no for direct implementation, but if one were instead to implement a right biquad filter and a lookup table for its parameters (to perform the filtering like DSPs do) I guess it could work. Sadly the digital filter part would probably exceed the other (oscillator + ADSR) in complexity.
@@MichalKobuszewski I'm interested in that. Will you be willing to spend time explaining those to me?
DIY photolithography and custom chips are a fucking insane concept.
What PCB software do you use?
Maybe through technical advances, economies of scale and multi-project wafer services, one day silicon production can get similar turn-around like what happened in the PCB industry.
It would take a lot of changes. Making stencils for all the layers is really expensive. You can’t “print” them out like with PCB where tracks are very wide (certainly compared to features in a chip). The tools used to dope silicon and deposit SiO2 are also not cheap. It would definitely be cool to get to that point. But it’s pretty far away for now
Did you use some kind of special fluid to safely remove soldered parts?
If so, I have never heard of such a product and would be VERY interested to know what it is!
He just uses flux paste that helps the solder to flow better. Then you have to heat the solder to melting temperature again to remove the chip.
I guess you could try to find some very specific acid that only attacks the tin in the solder, but i don't think this exists and it would just eat away all the metals, including the legs of the chip or other components.
This is sooooo nerdy! But I love it!!!
How much was one chip? And the whole project?
how much hashes per second?
its hashrate is in rolls per rick
For a very, very, very, very specific definition of "first" and "kind".
While the definition of “kind” may need to be somewhat specific, I don’t think “first” needs an unusual definition?
dime how did u get ur hand on a lithography machine that actually work
I wish i knew about this, this is so cool!!
Clearly you are never going to give that ASIC up.
You pass butter!
Oh my GOD!
Awesome video as always
drone flight controller?
is tinyTapeout only RTL, or can you do custom layout? also what tools are used for layout, i use cadence for work but that is anything but free and open source lol
You can do analog on the latest tinytapeouts. The most supported toolchain is xschem + magic + ngspice
What was the price of the Asic production with all the designs in the tiny tapeout?
Europractice offers similar service, and the costs per design is few thousand euros, so I imagine it's similar here (You are paying for multiple units because it's one whole wafer peen batch of projects, plus bonding and packaging service which is pretty expensive)
I found the price, it is ten k for a project and if you split the cost it is less, so in the tinytapeout it comes down to $150 per design and it's $50 per sq mm from the chip fab, or something like that. So actually quite affordable compared to what the prices were in the past.@@ninethirtyone4264
Did you need to reveal the content of the "secret file", or had been accepted without it?
Amazing !!!! ❤ love it
great job !
the bit I dont get the you used padding at the end of the file on the chip? why did you not every single zero and one of the avalable space on the chip, allotted to you? seems such a waste, there not much space to start with, and not using any bit of it,
This is really really really cool, I am just sad you cant order quantities. $300 for a custom (really small) chip is awesome, just wish I could order 1000 more for $1 each.
Nicely done!
As this behaves like a rom, wouldn't it had been interesting to create a "rom", which returns a different image every time you read it? Then you could still animate something (by just reading/displaying the picture in a loop from the ESP32), but really make use of the ASIC
When I'm lazy with a VR, i use a few diodes and resistor (series)... you know this tho....
Great project : )
I'm more interested in SIP and modules. You have dived much deeper. Actually, it would be enough if I gathered the ready-made products under one roof. (Especially in SIP form and Esp32 s3 and sx1262 chips)
Fine solution to the microchip crisis! Easy to do some really simple and primitive CPUs!
You used my text message ringtone! Mario 1-up
was this ASIC made on a 1µm lithographic process or something smaller than that?
The joke went over your head
?@@KatouMegumiosu
130nm skywater open source PDK
@@matthewvenn wow i had no idea that was feasable now
You are awesome. and thank you for this video
now we need to make an asic that only runs doom
Oh you can compile c on toaster? I rewrote doom in silicon
Wait hasn't someone already done this with Redstone? Free template
gratz and props!
hehe i made this kind of pinout mistake too on my board;p botched a fix before the re-design;p
You, Sir, are a genious!
Hmm I wonder if you could fit a midi file in 512 bytes...
I got Rick Rolled wanting to learn about real low volume asic builds??? It’s so 2024.
6:42 - I might have chosen a 91K with a 100K for the divider to get the 1.8V from the 3.3V, but maybe that would have been an extra component value that you didn’t care to have to “handle”
Kiloohms?? That would be way off, if the chip draws any current on the 1.8V net. Even the 100 Ohm voltage divider is far from ideal, as the current draw on a logic core supply is not static. So you modulate a voltage ripple on the core supply voltage thanks to the resistors. Depending on the chip, not meeting the core voltage specs and not using a stable supply voltage can give you all kinds of errors and issues that are super hard to track down. Worst case, it could even kill the core, and for a chip that you can't just order replacements, i'd think twice about the risk of destruction because of lazy circuit designs.
congrats
The best choice of use for a custom ASIC XD
I mean, you could have made a VGA controler, or anything, and no, it's a Rick roll (without sound), glorious!
Bhai maja aa gaya
Epic
Bhai tm BABA h
10:06 your quiet f**** made me laugh. That’s why I use a power cutter and shape it off the board before soldering the legs on.
Congrats, no small achievement