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kdembler / mac-gpg.md
Last active September 16, 2020 10:00
Setting up gpg commit signing on macOS

Set up GPG on macOS

Setup:

brew install gnupg2
gpg --import private.key

brew install pinentry-mac
echo "pinentry-program /usr/local/bin/pinentry-mac" > ~/.gnupg/gpg-agent.conf
killall gpg-agent
@kdembler
kdembler / apfsbug.md
Last active June 15, 2024 22:44
Fix League of Legends client not launching after champion select on macOS

The issue

After fresh install of League of Legends on macOS with case-sensitive APFS volume it's not possible to start League of Legends game, after champion selection the launcher won't open the game client and is stuck with reconnect button.

Solution

Terminal method is probably more reliable as you can see real file names within terminal opposite to Finder which "beautifies" them so you can't be sure what the actual file name is.

Note that League patcher will probably install updates under old filename so it's possible that these steps will need to be taken after every patch until Riot fixes it.

Terminal.app

  1. Open Terminal.app from Applications
  2. Browse to League contents with cd /Applications/League of Legends.app/Contents/LoL/RADS/solutions/lol_game_client_sln/releases/
@kdembler
kdembler / test.js
Created February 25, 2020 12:36
console.log('this is ocean protocol compute test')
@kdembler
kdembler / send_pkey_tx.py
Last active June 9, 2020 21:40
from web3 import Web3, HTTPProvider
web3_endpoint = 'https://kovan.infura.io/v3/xxxxxxxxxxxxxxxxxx'
private_key = '0xCC206D...'
web3 = Web3(HTTPProvider(web3_endpoint))
transaction = {
'to': '0x4d6Bb4ed029B33cF25D0810b029bd8B1A6bcAb7B',
'gas': 21000,
@kdembler
kdembler / generate_address_from_public_key.py
Last active June 9, 2020 21:21
from web3 import Web3
public_key = bytes.fromhex('04da2bb6a42df116824d7ccb91b09e3f8fa2c0c94a829791468dd10cc63b9c2f9cd8ead4b201a07acc30c4a9b23d77ec9c43f7206a039418b20ae89d395308e76f')
unprefixed_public_key = public_key[1:] # remove the '04' prefix
public_key_hash = Web3.keccak(unprefixed_public_key)
address_bytes = public_key_hash[-20:]
address = address_bytes.hex()
print(address)
@kdembler
kdembler / get_tx_hash.py
Last active June 9, 2020 20:29
from eth_account._utils.transactions import serializable_unsigned_transaction_from_dict
from web3 import Web3
transaction = {
'to': Web3.toChecksumAddress('0x4d6bb4ed029b33cf25d0810b029bd8b1a6bcab7b'),
'gas': 21000,
'gasPrice': 10000000000,
'nonce': 1,
'value': 1,
}
@kdembler
kdembler / decode_der_signature.py
Last active June 9, 2020 20:30
import ecdsa
signature = bytes.fromhex('3044022063a01ee35e4946f924202a2f1c5110047d4830a02f792fbe6bdfdfbf1fb513cf022016d1d8f95f9d69a9243c2e392dfebeb8ad9a2c8e693f161b5d29bdb802a9f0ee')
r, s = ecdsa.util.sigdecode_der(signature, ecdsa.SECP256k1.generator.order())
print(r)
print(s)
@kdembler
kdembler / send_hardware_wallet_transaction.py
Created June 9, 2020 21:44
import blocksec2go
import ecdsa
from eth_account._utils.transactions import serializable_unsigned_transaction_from_dict, encode_transaction
from web3 import Web3
from utils import get_reader, public_key_to_address, get_web3, find_recovery_key_id
key_id = 1
# initialize blocksec2go and web3
reader = get_reader()
@kdembler
kdembler / keybase.md
Created June 13, 2020 10:19

Keybase proof

I hereby claim:

  • I am kdembler on github.
  • I am kdembler (https://keybase.io/kdembler) on keybase.
  • I have a public key ASBJlMzsHq4pFmZXo1FN2rzZUA0evz-05jnHKx2ne_oTbgo

To claim this, I am signing this object:

@kdembler
kdembler / paramsEncodingDecoding.ts
Created March 16, 2021 17:00
import { Bytes, Raw } from "@polkadot/types";
import { ChannelMetadata } from "@joystream/content-metadata-protobuf";
import { ChannelCreationParameters } from "@joystream/types/content";
// getApi, getAssets, getRewardAccount and getMetaFromEvent are stubs here
const api = await getApi();