diff --git a/src/buffer/Buffer.zig b/src/buffer/Buffer.zig
index e3d5c47..ddcf889 100644
--- a/src/buffer/Buffer.zig
+++ b/src/buffer/Buffer.zig
@@ -44,6 +44,7 @@ file_utf8_sanitized: bool = false,
 hidden: bool = false,
 ephemeral: bool = false,
 meta: ?[]const u8 = null,
+lsp_version: usize = 1,
 
 undo_history: ?*UndoNode = null,
 redo_history: ?*UndoNode = null,
diff --git a/src/tui/editor.zig b/src/tui/editor.zig
index c73168a..f9fa3de 100644
--- a/src/tui/editor.zig
+++ b/src/tui/editor.zig
@@ -271,7 +271,6 @@ pub const Editor = struct {
     file_path: ?[]const u8,
     buffer: ?*Buffer,
     buffer_manager: *Buffer.Manager,
-    lsp_version: usize = 1,
     pause_undo: bool = false,
     pause_undo_root: ?Buffer.Root = null,
 
@@ -331,6 +330,7 @@ pub const Editor = struct {
         dirty: bool = false,
         eol_mode: Buffer.EolMode = .lf,
         utf8_sanitized: bool = false,
+        indent_mode: IndentMode = .spaces,
     } = .{},
 
     file_type: ?file_type_config = null,
@@ -642,7 +642,7 @@ pub const Editor = struct {
                 project_manager.did_open(
                     file_path,
                     ft,
-                    self.lsp_version,
+                    new_buf.lsp_version,
                     try content.toOwnedSlice(std.heap.c_allocator),
                     new_buf.is_ephemeral(),
                 ) catch |e|
@@ -1644,11 +1644,12 @@ pub const Editor = struct {
 
         if (token_from(self.last.root) != token_from(root)) {
             try self.send_editor_update(self.last.root, root, eol_mode);
-            self.lsp_version += 1;
+            if (self.buffer) |buf|
+                buf.lsp_version += 1;
         }
 
-        if (self.last.eol_mode != eol_mode or self.last.utf8_sanitized != utf8_sanitized)
-            try self.send_editor_eol_mode(eol_mode, utf8_sanitized);
+        if (self.last.eol_mode != eol_mode or self.last.utf8_sanitized != utf8_sanitized or self.last.indent_mode != self.indent_mode)
+            try self.send_editor_eol_mode(eol_mode, utf8_sanitized, self.indent_mode);
 
         if (self.last.dirty != dirty)
             try self.send_editor_dirty(dirty);
@@ -1769,14 +1770,14 @@ pub const Editor = struct {
 
     fn send_editor_update(self: *const Self, old_root: ?Buffer.Root, new_root: ?Buffer.Root, eol_mode: Buffer.EolMode) !void {
         _ = try self.handlers.msg(.{ "E", "update", token_from(new_root), token_from(old_root), @intFromEnum(eol_mode) });
-        if (self.syntax) |_| if (self.file_path) |file_path| if (old_root != null and new_root != null)
-            project_manager.did_change(file_path, self.lsp_version, try text_from_root(new_root, eol_mode), try text_from_root(old_root, eol_mode), eol_mode) catch {};
+        if (self.buffer) |buffer| if (self.syntax) |_| if (self.file_path) |file_path| if (old_root != null and new_root != null)
+            project_manager.did_change(file_path, buffer.lsp_version, try text_from_root(new_root, eol_mode), try text_from_root(old_root, eol_mode), eol_mode) catch {};
         if (self.enable_auto_save)
             tp.self_pid().send(.{ "cmd", "save_file", .{} }) catch {};
     }
 
-    fn send_editor_eol_mode(self: *const Self, eol_mode: Buffer.EolMode, utf8_sanitized: bool) !void {
-        _ = try self.handlers.msg(.{ "E", "eol_mode", @intFromEnum(eol_mode), utf8_sanitized });
+    fn send_editor_eol_mode(self: *const Self, eol_mode: Buffer.EolMode, utf8_sanitized: bool, indent_mode: IndentMode) !void {
+        _ = try self.handlers.msg(.{ "E", "eol_mode", eol_mode, utf8_sanitized, indent_mode });
     }
 
     fn clamp_abs(self: *Self, abs: bool) void {
@@ -5986,11 +5987,11 @@ pub const Editor = struct {
             const root = try self.buf_root();
             try root.store(content.writer(std.heap.c_allocator), try self.buf_eol_mode());
 
-            if (self.file_path) |file_path|
+            if (self.buffer) |buffer| if (self.file_path) |file_path|
                 project_manager.did_open(
                     file_path,
                     ft,
-                    self.lsp_version,
+                    buffer.lsp_version,
                     try content.toOwnedSlice(std.heap.c_allocator),
                     if (self.buffer) |p| p.is_ephemeral() else true,
                 ) catch |e|
diff --git a/src/tui/mainview.zig b/src/tui/mainview.zig
index a4aa7b0..ce8c911 100644
--- a/src/tui/mainview.zig
+++ b/src/tui/mainview.zig
@@ -1303,6 +1303,10 @@ pub fn write_restore_info(self: *Self) void {
     const buffer_manager = tui.get_buffer_manager() orelse @panic("tabs no buffer manager");
     buffer_manager.write_state(writer) catch return;
 
+    if (self.widgets.get("tabs")) |tabs_widget|
+        if (tabs_widget.dynamic_cast(@import("status/tabs.zig").TabBar)) |tabs|
+            tabs.write_state(writer) catch return;
+
     const file_name = root.get_restore_file_name() catch return;
     var file = std.fs.createFileAbsolute(file_name, .{ .truncate = true }) catch return;
     defer file.close();
@@ -1324,6 +1328,19 @@ fn read_restore_info(self: *Self) !void {
     if (!try cbor.matchValue(&iter, cbor.extract(&editor_file_path))) return error.Stop;
     try self.buffer_manager.extract_state(&iter);
 
+    if (self.widgets.get("tabs")) |tabs_widget|
+        if (tabs_widget.dynamic_cast(@import("status/tabs.zig").TabBar)) |tabs|
+            tabs.extract_state(&iter) catch |e| {
+                const logger = log.logger("mainview");
+                defer logger.deinit();
+                logger.print_err("mainview", "failed to restore tabs: {}", .{e});
+            };
+
+    const buffers = try self.buffer_manager.list_unordered(self.allocator);
+    defer self.allocator.free(buffers);
+    for (buffers) |buffer| if (!buffer.is_ephemeral())
+        send_buffer_did_open(self.allocator, buffer) catch {};
+
     if (editor_file_path) |file_path| {
         try tp.self_pid().send(.{ "cmd", "navigate", .{ .file = file_path } });
     } else {
@@ -1331,6 +1348,21 @@ fn read_restore_info(self: *Self) !void {
     }
 }
 
+fn send_buffer_did_open(allocator: std.mem.Allocator, buffer: *Buffer) !void {
+    const ft = try file_type_config.get(buffer.file_type_name orelse return) orelse return;
+    var content = std.ArrayListUnmanaged(u8).empty;
+    defer content.deinit(allocator);
+    try buffer.root.store(content.writer(allocator), buffer.file_eol_mode);
+
+    try project_manager.did_open(
+        buffer.get_file_path(),
+        ft,
+        buffer.lsp_version,
+        try content.toOwnedSlice(allocator),
+        buffer.is_ephemeral(),
+    );
+}
+
 fn get_next_mru_buffer(self: *Self) ?[]const u8 {
     const buffers = self.buffer_manager.list_most_recently_used(self.allocator) catch return null;
     defer self.allocator.free(buffers);
diff --git a/src/tui/status/filestate.zig b/src/tui/status/filestate.zig
index 9493d07..861b2b1 100644
--- a/src/tui/status/filestate.zig
+++ b/src/tui/status/filestate.zig
@@ -2,6 +2,7 @@ const std = @import("std");
 const Allocator = std.mem.Allocator;
 const tp = @import("thespian");
 const tracy = @import("tracy");
+const config = @import("config");
 const Buffer = @import("Buffer");
 const root = @import("root");
 const project_manager = @import("project_manager");
@@ -35,6 +36,7 @@ detailed: bool = false,
 file: bool = false,
 eol_mode: Buffer.EolMode = .lf,
 utf8_sanitized: bool = false,
+indent_mode: config.IndentMode = .spaces,
 
 const project_icon = "";
 const Self = @This();
@@ -155,15 +157,19 @@ fn render_detailed(self: *Self, plane: *Plane, theme: *const Widget.Theme) void
         _ = plane.print("{s} ({s})", .{ self.name, project_name }) catch {};
     } else {
         const eol_mode = switch (self.eol_mode) {
-            .lf => " [↩ = ␊]",
-            .crlf => " [↩ = ␍␊]",
+            .lf => "[↩ = ␊]",
+            .crlf => "[↩ = ␍␊]",
+        };
+        const indent_mode = switch (self.indent_mode) {
+            .spaces, .auto => "[⭾ = ␠]",
+            .tabs => "[⭾ = ␉]",
         };
 
         _ = plane.putstr(if (!self.file_exists) "󰽂" else if (self.file_dirty) "󰆓" else "󱣪") catch {};
         _ = plane.print(" {s}:{d}:{d}", .{ self.name, self.line + 1, self.column + 1 }) catch {};
         _ = plane.print(" of {d} lines", .{self.lines}) catch {};
         if (self.file_type.len > 0)
-            _ = plane.print(" ({s}){s}", .{ self.file_type, eol_mode }) catch {};
+            _ = plane.print(" ({s}) {s}{s}", .{ self.file_type, eol_mode, indent_mode }) catch {};
 
         if (self.utf8_sanitized) {
             plane.set_style(.{ .fg = theme.editor_error.fg.? });
@@ -214,13 +220,12 @@ fn process_event(self: *Self, m: tp.message) error{Exit}!bool {
     var file_type: []const u8 = undefined;
     var file_icon: []const u8 = undefined;
     var file_dirty: bool = undefined;
-    var eol_mode: Buffer.EolModeTag = @intFromEnum(Buffer.EolMode.lf);
     if (try m.match(.{ tp.any, "pos", tp.extract(&self.lines), tp.extract(&self.line), tp.extract(&self.column) }))
         return false;
     if (try m.match(.{ tp.any, "dirty", tp.extract(&file_dirty) })) {
         self.file_dirty = file_dirty;
-    } else if (try m.match(.{ tp.any, "eol_mode", tp.extract(&eol_mode), tp.extract(&self.utf8_sanitized) })) {
-        self.eol_mode = @enumFromInt(eol_mode);
+    } else if (try m.match(.{ tp.any, "eol_mode", tp.extract(&self.eol_mode), tp.extract(&self.utf8_sanitized), tp.extract(&self.indent_mode) })) {
+        //
     } else if (try m.match(.{ tp.any, "save", tp.extract(&file_path) })) {
         @memcpy(self.name_buf[0..file_path.len], file_path);
         self.name = self.name_buf[0..file_path.len];
diff --git a/src/tui/status/linenumstate.zig b/src/tui/status/linenumstate.zig
index b545e8e..3c29e48 100644
--- a/src/tui/status/linenumstate.zig
+++ b/src/tui/status/linenumstate.zig
@@ -2,6 +2,7 @@ const std = @import("std");
 const Allocator = std.mem.Allocator;
 const tp = @import("thespian");
 const Buffer = @import("Buffer");
+const config = @import("config");
 
 const Plane = @import("renderer").Plane;
 const command = @import("command");
@@ -22,6 +23,7 @@ buf: [256]u8 = undefined,
 rendered: [:0]const u8 = "",
 eol_mode: Buffer.EolMode = .lf,
 utf8_sanitized: bool = false,
+indent_mode: config.IndentMode = .spaces,
 padding: ?usize,
 leader: ?Leader,
 style: ?DigitStyle,
@@ -90,7 +92,11 @@ fn format(self: *Self) void {
         .lf => "",
         .crlf => " [␍␊]",
     };
-    std.fmt.format(writer, "{s} Ln ", .{eol_mode}) catch {};
+    const indent_mode = switch (self.indent_mode) {
+        .spaces, .auto => "",
+        .tabs => " [⭾]",
+    };
+    std.fmt.format(writer, "{s}{s} Ln ", .{ eol_mode, indent_mode }) catch {};
     self.format_count(writer, self.line + 1, self.padding orelse 0) catch {};
     std.fmt.format(writer, ", Col ", .{}) catch {};
     self.format_count(writer, self.column + 1, self.padding orelse 0) catch {};
@@ -115,11 +121,9 @@ fn format_count(self: *Self, writer: anytype, value: usize, width: usize) !void
 }
 
 pub fn receive(self: *Self, _: *Button.State(Self), _: tp.pid_ref, m: tp.message) error{Exit}!bool {
-    var eol_mode: Buffer.EolModeTag = @intFromEnum(Buffer.EolMode.lf);
     if (try m.match(.{ "E", "pos", tp.extract(&self.lines), tp.extract(&self.line), tp.extract(&self.column) })) {
         self.format();
-    } else if (try m.match(.{ "E", "eol_mode", tp.extract(&eol_mode), tp.extract(&self.utf8_sanitized) })) {
-        self.eol_mode = @enumFromInt(eol_mode);
+    } else if (try m.match(.{ "E", "eol_mode", tp.extract(&self.eol_mode), tp.extract(&self.utf8_sanitized), tp.extract(&self.indent_mode) })) {
         self.format();
     } else if (try m.match(.{ "E", "open", tp.more })) {
         self.eol_mode = .lf;
diff --git a/src/tui/status/tabs.zig b/src/tui/status/tabs.zig
index c2de5b2..97ffbf6 100644
--- a/src/tui/status/tabs.zig
+++ b/src/tui/status/tabs.zig
@@ -1,4 +1,5 @@
 const std = @import("std");
+const cbor = @import("cbor");
 const tp = @import("thespian");
 const root = @import("root");
 
@@ -64,7 +65,7 @@ pub fn create(allocator: std.mem.Allocator, parent: Plane, event_handler: ?Event
     return Widget.to(self);
 }
 
-const TabBar = struct {
+pub const TabBar = struct {
     allocator: std.mem.Allocator,
     plane: Plane,
     widget_list: *WidgetList,
@@ -267,6 +268,45 @@ const TabBar = struct {
         if (buffer_manager.buffer_from_ref(tab.buffer_ref)) |buffer|
             tp.self_pid().send(.{ "cmd", "navigate", .{ .file = buffer.get_file_path() } }) catch {};
     }
+
+    pub fn write_state(self: *const Self, writer: Buffer.MetaWriter) error{OutOfMemory}!void {
+        try cbor.writeArrayHeader(writer, self.tabs.len);
+        for (self.tabs) |tab| try cbor.writeValue(writer, ref_to_name(tab.buffer_ref));
+    }
+
+    fn ref_to_name(buffer_ref: usize) ?[]const u8 {
+        const buffer_manager = tui.get_buffer_manager() orelse @panic("tabs no buffer manager");
+        return if (buffer_manager.buffer_from_ref(buffer_ref)) |buffer| buffer.get_file_path() else null;
+    }
+
+    pub fn extract_state(self: *Self, iter: *[]const u8) !void {
+        var iter2 = iter.*;
+        self.allocator.free(self.tabs);
+        self.tabs = &.{};
+
+        var result: std.ArrayListUnmanaged(TabBarTab) = .{};
+        errdefer result.deinit(self.allocator);
+
+        var count = cbor.decodeArrayHeader(&iter2) catch return error.MatchTabArrayFailed;
+        while (count > 0) : (count -= 1) {
+            var buffer_name: ?[]const u8 = undefined;
+            if (!(cbor.matchValue(&iter2, cbor.extract(&buffer_name)) catch false)) return error.MatchTabBufferNameFailed;
+            if (buffer_name) |name| if (name_to_ref(name)) |buffer_ref| {
+                (try result.addOne(self.allocator)).* = .{
+                    .buffer_ref = buffer_ref,
+                    .widget = try Tab.create(self, buffer_ref, &self.tab_style, self.event_handler),
+                };
+            };
+        }
+
+        self.tabs = try result.toOwnedSlice(self.allocator);
+        iter.* = iter2;
+    }
+
+    fn name_to_ref(buffer_name: []const u8) ?usize {
+        const buffer_manager = tui.get_buffer_manager() orelse @panic("tabs no buffer manager");
+        return if (buffer_manager.get_buffer_for_file(buffer_name)) |buffer| buffer_manager.buffer_to_ref(buffer) else null;
+    }
 };
 
 const Tab = struct {
@@ -457,6 +497,22 @@ const Tab = struct {
         const basename = if (basename_begin) |begin| file_path[begin + 1 ..] else file_path;
         return basename;
     }
+
+    fn write_state(self: *const @This(), writer: Buffer.MetaWriter) error{OutOfMemory}!void {
+        try cbor.writeArrayHeader(writer, 9);
+        try cbor.writeValue(writer, self.get_file_path());
+        try cbor.writeValue(writer, self.file_exists);
+        try cbor.writeValue(writer, self.file_eol_mode);
+        try cbor.writeValue(writer, self.hidden);
+        try cbor.writeValue(writer, self.ephemeral);
+        try cbor.writeValue(writer, self.meta);
+        try cbor.writeValue(writer, self.file_type_name);
+    }
+
+    fn extract_state(self: *@This(), iter: *[]const u8) !void {
+        _ = self;
+        _ = iter;
+    }
 };
 
 const spacer = struct {