1 INTRODUCTION  
2 DATA  
2.1 DESI Early Data Release  
2.2 Repeat Observations and Statistical Redshift Uncertainty  
2.3 $N$-body Simulation: UNIT  
3 METHOD  
3.1 Galaxy Clustering  
3.2 SHAM Implementation  
3.3 SHAM Constraints  
4 RESULTS  
4.1 Clustering  
4.2 Scatter in galaxy–halo mass relation  
4.3 Massive (Sub)Halo Incompleteness  
4.4 Redshift Uncertainty  
4.5 Satellite Fraction  
4.6 Halo Occupation Distribution  
5 CONCLUSIONS