If you prefer a Verilog IDE instead of Icestudio's drawing approach, have a look at https://github.com/rochus-keller/verilogcreator/
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There's also the "icestorm" tools if you prefer a few minimal programs and a Makefile (which is very different from most commercial FPGA dev environments.)
You need Icestorm or Symbiflow in any case; VerilogCreater doesn't include them.