Chihyun Song ian0371

## 23.04-hands-on.md

      
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                ian0371
                / 23.04-hands-on.md
            
            
              Last active
              April 14, 2023 02:28
            
              
                Klaytn DevMeet 2023.04 hands-on
              
          
    Klaytn DevMeet 2023.04 hands-on

Prerequisites


curl or cast (from foundry) installed (If neither is available on your computer, try: https://reqbin.com/curl)

Explore hardfork numbers on-chain

# To use curl,
curl -H "Content-Type: application/json" --data '{"jsonrpc":"2.0", "method":"klay_getChainConfig", "params":["latest"],"id":1}' https://api.baobab.klaytn.net:8651

  
## a_help-osx-borked-my-nix.md

      
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                ian0371
                / a_help-osx-borked-my-nix.md
            
            
              Created
              November 4, 2023 05:04
                — forked from meeech/a_help-osx-borked-my-nix.md
            
              
                Some steps to (hopefully) help you fix your Nix install on OS X after an upgrade.
              
          
    Apple Borked my Nix!

Ok, so you've had nix (home-manager) working fine. Then Apple tells you it's time to update.
Ok.  Reboot. Oops. It has now broken your Nix setup. Here's some stuff to work through. YMMV.
Note: This is what worked for me, who was just using nix + home-manager. The upgrade that I last did that caused all these issues was 12.3.X > 12.4
Useful Links


## debug_test.sh
#!/bin/bash

i=156607361
EN=http://localhost:8551/

while true; do
    i=$((i + 128))
    start=$(printf '0x%x' "$i")
    end=$(printf '0x%x' "$((i + 127))")
	#!/bin/bash

	i=156607361
	EN=http://localhost:8551/

	while true; do
	i=$((i + 128))
	start=$(printf '0x%x' "$i")
	end=$(printf '0x%x' "$((i + 127))")