remove global variables

[knbr13]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 68.42105% with 6 lines in your changes are missing coverage. Please review.

Project coverage is 67.04%. Comparing base (aa1a5e9) to head (64a27f5).

Files	Patch %	Lines
main.go	0.00%	4 Missing ⚠️
utils.go	81.81%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #27      +/-   ##
==========================================
- Coverage   67.24%   67.04%   -0.20%     
==========================================
  Files           6        6              
  Lines         174      176       +2     
==========================================
+ Hits          117      118       +1     
- Misses         48       49       +1     
  Partials        9        9              

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