Something like Umbrel but lighter and portable. Something like RaspiBolt but easier and automated.

Bitcoin/Lightning-Network oriented with no frills.

Awning doesn't install anything on your PC, making it lightweight, customizable and portable. It is a plain/vanilla Docker setup. No script is ever run in your host.

https://github.com/giovantenne/awning

The ESP32 has no USB port in the sense you might think.
The USB port on your ESP32 board is connected to a USB to serial chip, this lets you program the module and exchange data over the serial connection. So the ESP32 acts as a passive USB device like a usb-stick or a mouse. I don't think it can be used as network interface at this stage.

It needs to be connected to a WiFi network in order to fetch prices and stats.  I actually don't think is even technically possible to use the USB serial port as network interface.
On the other hand you don't need a PC but you can also connect it to a wall charger.

It needs to be connected to a WiFi network in order to fetch prices and stats.  I actually don't think is even technically possible to use the USB serial port as network interface.
On the other hand you don't need a PC but you can also connect it to a wall charger.

The open-source code here is for v2  that uses TTGO T-Display.

I also released the code for v1 that uses the Heltec WiFi Kit 32, with OLED display.
https://github.com/giovantenne/CG1

Both v1 and v2 need to be powered through USB.

The v3 version has e-ink display and works for months with 3xAA batteries, but I didn't released the code yet becouse there is a backend involved

Source code and STL files:
https://github.com/giovantenne/CG2

Unlike similar devices this one uses WebSockets and updates the display real-time, several time per second!






FEATURES
------------

WiFi powered. No PC needed
This ticker is a stand-alone device and it directly connects to an existing WiFi network. This means that you don’t need a PC to get it running.

3D printed in eco-friendly bioplastic
Each item is 3d-printed with a fully biodegradable vegetable-based plastic material. contrary to other thermoplastics which are petroleum-based, some of the raw materials used include corn starch, tapioca roots, or sugarcane.

Super easy setup
Connect the device to your WiFi network and program it through your phone/pc thanks to an easy to use web interface!

Support for more than 600 pairs
Choose your three favorites from more than 600 cryptocurrency trading pairs (Binance used as source).

True real-time price
Unlike similar devices CryptoGadgets display updates real-time, several time per second!

Adjustable display brightness
Adjust your device's brightness so it will not bother you at night if you want to keep it on your bedside table.

Upgradable firmware
Keep your device updated with periodic bug-fixes and performance improvements.

USB-C powered
Just connect the device to your USB wall charger or to any USB port through a USB-C cable to get it running (cable not included)

Power efficient LCD display
Onboard 1.14-inch 240*135 power efficient dot matrix COLOR display.

Source code and STL files released:
https://github.com/giovantenne/CG2

The hardware is an Arduino-like chip. It is called ESP32

Unfortunately only Binance is supported at this stage, but you can easily switch from USD to EURO  through a web interface where you can choose 3 between more than 600 supported pairs and loop through them with the push of a button:
https://i.etsystatic.com/23925075/r/il/cc5000/4610496696/il_794xN.4610496696_j0ol.jpg

Exactly  

Actually I have about 15 devices left... Hopefully It will be out of stock soon

I have no problem releasing the code, but I would prefer to do some refactor before. As for my first message, I created these objects for myself so I didn't put too much effort on code readability.

WPA-2 is supported. WPA-3 is disabled in order to keep the firmware size small

Thanks :-)
I took the opportunity to learn nextjs

I perfectly understand your concern!
This is the same trust issue we all are facing daily with our IoT devices (printers, IP cam, smart devices, etc). Unfortunately we can only trust the manufacturers.
Connecting the device to your "guest" network (if available) can make you fell more comfortable.
In any case, keeping your network and your devices/computers updated and secure is the best thing you can do. This regardless of this ticker, especially if you are in the crypto-space. In this case an hardware wallet should be a "must have".

Yep, I know it is not cheap, but please consider that it is not an industrial/mass-produced device. Every device takes more than 3 hours of continuous printing.
Additionally shipping and taxes are already included on the price, so the final gain is quite low.

This is a really nice idea, but instead of a promo code I just release a referral program that can allow anyone to use an LNURL to automatically receive a 10% of the total for every purchase done on the following 24 hours.
For example, if someone access the site with the following URL and purchase some devices (within 24 hours) the system will send the 10% of the total in BTCitcoin to the ref address indicated in the url:
https://www.cryptogadgets.net?ref=lnurl1dp68gurn8ghj7ampd3kx2ar0veekzar0wd5xjtnrdakj7tnhv4kxctttdehhwm30d3h82unvwqhkyctwdejkgar4wf6xcefkxuh2lnk3

This can automatically become a sort of cashback for anyone who knows this trick (currently only you at bitcointalk )

Here is the link to my website shop where you can also pay with crypto:
https://www.cryptogadgets.net/

I first created these objects for myself, playing with 3D modeling, 3D printing and software development.
After a few hours of coding and several 3D prototypes thrown in the trash, I was so satisfied with the results that I started to sell the device on Etsy

After a few hundred of sales I created an upgraded version with the following features:

WiFi powered. No PC needed
This ticker is a stand-alone device and it directly connects to an existing WiFi network. This means that you don’t need a PC to get it running.

3D printed in eco-friendly bioplastic
Each item is 3d-printed with a fully biodegradable vegetable-based plastic material. contrary to other thermoplastics which are petroleum-based, some of the raw materials used include corn starch, tapioca roots, or sugarcane.

Super easy setup
Connect the device to your WiFi network and program it through your phone/pc thanks to an easy to use web interface!

Support for more than 600 pairs
Choose your three favorites from more than 600 cryptocurrency trading pairs (Binance used as source).

True real-time price
Unless similar devices CryptoGadgets display updates real-time, several time per second!

Adjustable display brightness
Adjust your device's brightness so it will not bother you at night if you want to keep it on your bedside table.

Upgradable firmware
Keep your device updated with periodic bug-fixes and performance improvements.

USB-C powered
Just connect the device to your USB wall charger or to any USB port through a USB-C cable to get it running (cable not included)

Power efficient LCD display
Onboard 1.14-inch 240*135 power efficient dot matrix COLOR display.

I really hope you like it
---
https://www.cryptogadgets.net/

Ciao, sono piuttosto incurosito da questo FabLab... probabilmente sabato ci faccio un salto.
Ora vado a retwittare 

Forte, non conoscevo fdroid e il sistema di "source build". Siamo però sicuri che google non modifichi gli apk caricati sullo store? Appena ho un attimo verifico. Lo dico perchè tempo fa creai un addon per firefox e per chrome, e uno dei due "store", non ricordo quale, modificava autonomamente il manifest.

Anche se pubblicasse il codice su github che differenza farebbe? Chi garantirebbe che l'app sullo store sia stata realmente generata da quel codice e che non sia stato iniettato del codice malevolo a posteriori?
Non credo siano molti quelli in grado di generare l'APK partendo dal codice sorgente.

In ogni caso, ottimo lavoro :-)

Da quel poco che so, se la tua è una attività "organizzata" (non amatoriale/saltuaria) sei comunque soggetto a tassazione e tenuto ad aprire P.IVA.
I ricavi dovrebbero essere calcolati convertendo gli incassi in BTC al valore "nel momento" della transazione, indipendentemente se li converti realmente in FIAT o se li mantieni in BTC.
Se poi il BTC aumenta di valore pagerai una tassazione aggiuntiva sulla plusvalenza al momento del cambio.

Noi stiamo qui a lamentarci, ma pensate a Bitstamp, che dopo il furto, adesso si vede passare sotto tutti questi volumi con le fee a 0% 

con "fully rebuilding our systems from the ground up" non intendano sicuramente la riscrittura completa del sistema, ma semplicemente un nuovo deploy (sviluppo del sistema in ambiente di produzione) ripartendo da ambienti sani e puliti.

Se per ipotesi, solo per chiarire il concetto, un sito fosse  vittima di un attacco del tipo "Malicious File Execution" i craker potrebbero infestare non solo i server, ma tutta l'intrastruttura con le più disparate e nascoste web-shell.
L'unica soluzione in questo caso sarebbe quella di mettere mano al codice per rimuovere la vulnerabilità, e ricreare l'infrastruttura effettuando il deploy su macchine e hardware "pulito"

Inoltre dubito che tornino online senza aver capito dove stava la falla e senza avervi posto rimedio... con 5M di danni alle spalle, non credo correrebbero nuovamente il rischio

Quello che dici è vero, ma qui non stiamo parlando di un disaster-recovery in seguito ad un terremoto o ad un incendio, dove è sufficeinte un backup geografico per ripartire in pochi minuti, qui stiamo parlando di un sistema compromesso.

Purtroppo se il tuo sistema è stato compromesso hai due alternative:
1) Riesci ad individuare la vulnerabilità e l'exploit utilizzato e cerchi di "ripulire" il tutto
2) Riparti da zero con il deploy di un sistema "pulito", chiaramente dopo aver sistemato le vulnerabilità

Il primo caso è forse il più semplice, ma anche il più rischioso, perchè non avrai mai la certezza di avere ripulito il sistema da ogni manomissione conseguente all'intrusione
Il secondo metodo è forse quello più laborioso, ma ti garantisce certamente una maggior sicurezza, trasaparenza e pulizia

In entrambi i casi i tempi si dilatano con l'aumento della complessità del sistema

Non essendo però noti i dettagli dell'attacco è difficile esprimere un parere (positivo o negativo che sia) sull'operato di Bitstamp

E alla macchina offline le richieste come gliele mandiamo? sempre tramite l'umpa-lumpa?

ed ogni volta che qualcuno vuole prelevare mandiamo un umpa-lumpa a far firmare manualmente la transazione sul cold-wallet 
Gli Hot-Wallet servono per garantire la liquidità e la velocità del servizio. Non c'è molto da fare se non prendere tutte le precauzioni possibili e, possibilmente, quelle impossibili