My custom Zed configs (for Windows, not Mac/Linux). Took lot from internet, added other by myself.

settings.json

// LucasAlfare Zed Settings
//
// For information on how to configure Zed, see the Zed
// documentation: https://zed.dev/docs/configuring-zed
//
// To see all of Zed's default settings without changing your
// custom settings, run `zed: open default settings` from the
// command palette (cmd-shift-p / ctrl-shift-p)
{
  "ui_font_size": 14,
  "buffer_font_family": "JetBrains Mono",
  "ui_font_family": "JetBrains Mono",
  "auto_indent_on_paste": true,
  "buffer_font_size": 16,
  "theme": {
    "mode": "system",
    "light": "Catppuccin Frappé - No Italics",
    "dark": "One Dark"
  },
  "autosave": "on_focus_change",
  "tabs": {
    "file_icons": true,
    "git_status": true
  },
  "indent_guides": {
    "enabled": true,
    "coloring": "indent_aware"
  },
  "file_scan_exclusions": [
    "**/.git",
    "**/.svn",
    "**/.hg",
    "**/.jj",
    "**/CVS",
    "**/.DS_Store",
    "**/Thumbs.db",
    "**/.classpath",
    "**/.settings",
    "**/vendor"
  ],
  "languages": {
    "SQL": {
      "tab_size": 2,
      "formatter": {
        "external": {
          "command": "pg_format"
        }
      }
    },
    "JavaScript": {
      "tab_size": 2,
      "formatter": {
        "external": {
          "command": "prettier",
          "arguments": ["--stdin-filepath", "{buffer_path}"]
        }
      },
      "code_actions_on_format": {
        "source.fixAll.eslint": true
      }
    },
    "HTML": {
      "formatter": {
        "external": {
          "command": "prettier",
          "arguments": ["--stdin-filepath", "{buffer_path}"]
        }
      }
    },
    "Go": {
      "tab_size": 2
    },
    // formats rust code using propper rustfmt command
    "Rust": {
      "tab_size": 2, // sets this for custom tab size. You can configure ~/.rustfmt.toml globally as fallback to set rustfmt config
      "formatter": {
        "external": {
          "command": "rustfmt",
          "arguments": ["--emit", "stdout"]
        }
      }
    },
    "Make": {
      "hard_tabs": true
    }
  },
  // global formatting? Needed?
  // "hard_tabs": false,
  // "formatter": "prettier",
  "format_on_save": "on",
  "project_panel": {
    "indent_size": 30,
    "default_width": 200,
    "entry_spacing": "standard",
    "file_icons": true,
    "folder_icons": false,
    "auto_fold_dirs": false,
    "auto_reveal_entries": true,
    "button": true,
    "dock": "left",
    "git_status": true,
    "indent_guides": {
      "show": "never"
    }
  },
  "tab_bar": {
    "show_tab_bar_buttons": false,
    "show": true,
    "show_nav_history_buttons": false
  },
  "centered_layout": {
    "left_padding": 0.15,
    "right_padding": 0.15
  },
  "inlay_hints": {
    "enabled": false
  },
  "features": {
    "edit_prediction_provider": "none"
  },
  "soft_wrap": "editor_width",
  "edit_predictions": {
    "disabled_globs": []
  },
  "scrollbar": {
    "git_diff": false,
    "search_results": false,
    "selected_symbol": false,
    "diagnostics": "error"
  },
  "search": {
    "case_sensitive": true
  },
  "telemetry": {
    "diagnostics": false,
    "metrics": false
  },
  "diagnostics": {
    "inline": {
      "enabled": true,
      "update_debounce_ms": 150,
      "padding": 4,
      "min_column": 0,
      "max_severity": null
    },
    "include_warnings": false
  },
  "gutter": {
    "line_numbers": true,
    "code_actions": false,
    "runnables": false,
    "folds": true
  },
  "preview_tabs": {
    "enabled": false,
    "enable_preview_from__file_finder": false,
    "enable_preview_from_code_navigation": false
  },
  "git": {
    "git_gutter": "hide",
    "inline_blame": {
      "enabled": false
    }
  },
  "toolbar": {
    "breadcrumbs": false,
    "quick_actions": false,
    "selections_menu": false
  },
  "agent": {
    "version": "2",
    "enabled": false
  },
  "outline_panel": {
    "button": false
  },
  "collaboration_panel": {
    "button": false
  },
  "chat_panel": {
    "button": "never"
  },
  "notification_panel": {
    "button": false
  },
  "task": {
    "show_status_indicator": false
  },
  "line_indicator_format": "short",
  // I set all to false
  "title_bar": {
    "show_branch_icon": false,
    "show_sign_in": false,
    "show_user_picture": false,
    "show_branch_name": false,
    "show_onboarding_banner": false,
    "show_project_items": false
  },
  "terminal": {
    "dock": "bottom",
    "default_width": 640,
    "default_height": 320,
    "working_directory": "current_project_directory",
    "blinking": "terminal_controlled",
    "cursor_shape": null,
    "alternate_scroll": "off",
    "option_as_meta": false,
    "copy_on_select": true,
    "button": true,
    "line_height": "comfortable",
    "toolbar": {
      "title": false,
      "breadcrumbs": false
    }
  },
  "lsp": {
    "kotlin-language-server": {
      "settings": {
        "compiler": {
          "jvm": {
            "target": "21"
          }
        }
      }
    }
  }
}