I had a look at Minera, and it seems great, but it's been about a year since the project stopped being maintained.

Anyone has an alternative? My only real requirements would be to be open source, web based, and to read from cgminer's api. I'm happy with just a viewer/monitor, no need to be able to control or manage the miner itself.

Thanks, added them.

And great job with cpuminer-opt!

Thanks, it looks very specific(only for Linux, AMD, and Ethash), but it's been actively developed so I added it to the list.

Thanks, added kawpowminer. It seems that nsfminer stopped being developed (repository is read only since about a year ago)

I'm mostly interested in the source code itself, rather than the miner binaries working correctly.

Heaps of other threads here about the best closed sourced miners.

Here are some of the best open source miners with their supported algorithms:

ethminer: Supports Ethash.

ethash: Supports Ethash.

acominer: Supports Ethash.

kawpowminer: Supports ProgPoW.

Ravencoin: Supports KawPow.

VerthashMiner: Supports Verthash.

bfgminer: Supports Keccak, scrypt, and sha256d.

XMRig Supports RandomX, KawPow, CryptoNight, AstroBWT, and GhostRider.

sgminer-phi2-branch: Supports ethash, phi2, lyra2Z[z], allium, x25x, lyra2REv2/v3, argon2d, yescrypt, neoscrypt, 0x10

ccminer: Supports a long list of algorithms

cpuminer-opt: Supports more than ninety algorithms

I tried to find the latest Gateless Gate Sharp but it seems like it has been removed, and there's only an earlier version available for some reason.

If you know of any other open source miner, specially if it's being actively developed, please share it here.

Did you use kano's suggestions? Try with a lower gekko-start-freq to start with and see when it starts to fail.

Ideally connect a USB power meter to see if the power is actually being delivered correctly from the hub.

Also, are you using a good fan?, it could be overheating and failing because of that.

In any case, it's working as expected though, since they're only ensuring 400MHz:


In that post are other things you can try as well:

10: The Bitcoin system is designed so that, on average, a new block is mined every 10 minutes.

50: The initial block reward at genesis(2009) was set to 50 bitcoins. This is the reward a miner gets for solving a new block. Every roughly 4 years this number is halved.

2016: The mining difficulty is adjusted every 2016 blocks to keep blocks 10 minutes apart on average. If the miners are too fast, the difficulty increases, and if they're too slow, it becomes lower. This number comes from choosing roughly 2 weeks as the amount of time between difficulty adjustments. 2016 = (60 * 24 * 7 * 2 / 10).

2140: The approximate year in which the last reward will be given to a miner, assuming the precision hasn't changed by that time. If the precision is increased, then mining rewards will continue as usual with their halving mechanism, always getting closer and closer to the maximum of 21 million bitcoins.

210,000: The mining reward is halved after this many blocks have been mined. It's roughly 4 years assuming constant 10 minutes blocks (60 * 24 * 365 * 4 / 10 = 210,240)

21,000,000: This is the maximum amount of bitcoins ever to exist(Note that for some technical reasons there will be a few less sats than that though). You can get to this number by doing a bit of math:

Each rewards era has half of the reward as before: 50, 25, 12.5, 6.25, 3.125, 1.5625, etc. If you sum them all up you get an infinite geometric series that can be solved and the result is 100:



Each one of the 210,000 blocks of each era receive their corresponding rewards, so you can sum them all up to get the total number of bitcoins: 210,000 * 50 + 210,000 * 25, etc, which is the same as doing 210,000 * (50 + 25 + ... ), and we already know the number in parenthesis is 100. So total rewards are 210,000 * 100 = 21,000,000.

100,000,000: The amount of satoshis in one bitcoin. Satoshis are also called sats.

There are countless of posts like this in multiple platforms from many years ago until today, and there will be plenty more in the future.

Think of Bitcoin as a savings account. It would have been better to start saving 10 years ago, but it's fine to start today.

What are some of the best ways to ensure these miners are running stable, getting proper airflow, and are not getting too hot over time?

One thing I've checked is that the required power at the given frequency remains stable. This will depend on how much the USB hub can provide, for example 400MHz would require about 2A, and 500MHz would require about 2.4A (which is the maximum for many USB hubs). You can of course go higher if the USB hub can deliver that much power per slot. If there's no tripping on the hub, and the software remains stable, this should be fine. You can measure this with one of those cheap USB power meter testers you can get online.

Now, in terms of heat, I'm not really sure how you could ensure the device is not running too hot. Of course you should run a fan pointed into the aluminium heat sink, but I'm not sure if the angle/distance plays a huge role. Also, at some point the fan might not be enough. Not sure how to establish that.

I've been thinking about maybe getting one of those thermal cameras to monitor the temperature. What would be a reasonable range of temperature for normal operation with this device? Also, are there any components that are more critical regarding thermal conditions? Should it be cooled from the back and front as well?, or it doesn't matter too much?

So far everything seems to be running smooth, but I'm not sure if I'm just slow cooking the miner

Well, of course you can if you can get all the parts, design a board yourself, and build it.

For example that's basically what the Compac F from GekkoScience is. It's a custom board that uses one BM1397 chip, which is the one used in the S17 miner.

Here's the main component: https://asicminerparts.com/products/bm1397ag-asic-chip-s17-t17

But of course, most people won't have the skills, time, or desire to do all that work, so they just buy the miner pre-built by someone else.

You can use lightning for basically instant transactions in BTC. If you've never used it before, you can try Muun as it's one of the simplest to use, and check out some lightning stores(and faucet) here.

On-chain transaction will always remain at 10 minutes on average by design. Independent of how fast miners get.

Bitcoin is the end goal.

Most alts are just a side step to try to get more Bitcoin in the end, or fiat for some of their creators.

In the end, alts will come and go, but Bitcoin will still be there. That means that alts will move with Bitcoin.

I try not to bring it up really, as people are mostly in two sides:

• The ones that think you're crazy for buying something fake with real money and that you're basically gambling
• The ones that are shilling you some altcoin non-stop after you mentioned Bitcoin, and how their alt is better

I prefer to quietly keep saving my money on the best financial instrument ever created.

For anyone thinking about doing this, I would say don't. It's very insecure, and you probably will end up losing your money.

If you want to make a hardware wallet yourself, I would recommend doing it with a Raspberry Pi Zero(as it has no networking hardware) and Electrum(which is open source, verifiable, and trusted for a long time)[1].

That way you can create a watch-only wallet in your main internet connected PC without risk for managing the wallet, and you can spend money by using PSBTs[2], and transferring them through QR codes with a webcam. It works great.

[1]: https://armantheparman.com/how-to-set-up-a-raspberry-pi-zero-air-gapped-with-electrum-desktop-wallet
[2]: https://en.bitcoin.it/wiki/BIP_0174

Live View Link:
https://solo.ckpool.org/users/bc1qg0ym6jt4w2kz6aa4m3avf4znhzrm99n273dslw

{
 "hashrate1m": "23.3P",
 "hashrate5m": "22.6P",
 "hashrate1hr": "23.1P",
 "hashrate1d": "7.11P",
 "hashrate7d": "1.17P",
 "lastshare": 1649720042,
 "workers": 32,
 "shares": 169622153808,
 "bestshare": 394043332839.1483,
 "bestever": 394043332839,
 "worker": [
  {
   "workername": "bc1qg0ym6jt4w2kz6aa4m3avf4znhzrm99n273dslw",
   "hashrate1m": "23.3P",
   "hashrate5m": "22.6P",
   "hashrate1hr": "23.1P",
   "hashrate1d": "7.11P",
   "hashrate7d": "1.17P",
   "lastshare": 1649720042,
   "shares": 169622153808,
   "bestshare": 394043332839.1483,
   "bestever": 394043332839
  }
 ]
}

Bitcoin Difficulty:
28.587.155.782.196

Bestshare:
394.043.332.839
292.658.926.662
111.299.007.567
10.001.382.100
7.337.884.946
436.045.741
89.054.101

Gold and silver have a lot of issues given that they're physical objects, hard to carry around, difficult to validate, etc.

Altcoins are mostly scams.

Which leaves Bitcoin as the best investment, by far.

A quiet home miner really.

That will change always. The original was Generate Coins in a CPU program in 2009, but I missed it. Now I'm eager to run low powered efficient miners at home. The Apollo seems to be the best one, along with the Compac F.

Since this is the Apollo BTC thread, the official answer would be to wait for a bit:

Having said that, if you're capable of managing your own device, install and configure things on your own, then you could use any lightning setup on top of the Apollo.

I personally prefer open source above anything else, so here is a fully open source stack to run a lightning node through REST with a great web based interface, which gives you a lot of flexibility:

• Bitcoin Core: The Bitcoin node, already in your Apollo Computer. This is your private Bitcoin node that you will connect to. Setup a RPC user and password for it.
• c-lightning: a lightweight C implementation of the Lightning Network. This will connect to the Bitcoin node in the same device using that user/pass.
• C-Lightning-REST: A rest API interface for c-lightning.
• Ride-The-Lightning: RTL is an awesome web based interface for managing your node. It communicates through the REST API to your node.

And now you should be able to manage your node through a great web interface. All powered by open source.

The Single Board Computer is running a full Bitcoin node, so you can run a lightning node there on top of it.

I don't know if the official SD card image comes with a lightning node pre-installed, but you can definitely install it and set it up yourself as it's basically just a computer.