diff --git a/nostrdb/flatcc/builder.c b/nostrdb/flatcc/builder.c
index c5155a85e..74535fb1c 100644
--- a/nostrdb/flatcc/builder.c
+++ b/nostrdb/flatcc/builder.c
@@ -177,7 +177,7 @@ int flatcc_builder_default_alloc(void *alloc_context, iovec_t *b, size_t request
     return 0;
 }
 
-#define T_ptr(base, pos) ((void *)((uint8_t *)(base) + (uoffset_t)(pos)))
+#define T_ptr(base, pos) ((void *)((size_t)(base) + (size_t)(pos)))
 #define ds_ptr(pos) (T_ptr(B->buffers[flatcc_builder_alloc_ds].iov_base, (pos)))
 #define vs_ptr(pos) (T_ptr(B->buffers[flatcc_builder_alloc_vs].iov_base, (pos)))
 #define pl_ptr(pos) (T_ptr(B->buffers[flatcc_builder_alloc_pl].iov_base, (pos)))
@@ -698,7 +698,8 @@ static inline flatcc_builder_ref_t emit_back(flatcc_builder_t *B, iov_state_t *i
     return ref + 1;
 }
 
-static int align_to_block(flatcc_builder_t *B, uint16_t *align, uint16_t block_align, int is_nested)
+/* If nested we cannot pad the end of the buffer without moving the entire buffer, so we don't. */
+static int align_buffer_end(flatcc_builder_t *B, uint16_t *align, uint16_t block_align, int is_nested)
 {
     size_t end_pad;
     iov_state_t iov;
@@ -708,7 +709,7 @@ static int align_to_block(flatcc_builder_t *B, uint16_t *align, uint16_t block_a
     get_min_align(align, block_align);
     /* Pad end of buffer to multiple. */
     if (!is_nested) {
-        end_pad = back_pad(B, block_align);
+        end_pad = back_pad(B, *align);
         if (end_pad) {
             init_iov();
             push_iov(_pad, end_pad);
@@ -723,13 +724,13 @@ static int align_to_block(flatcc_builder_t *B, uint16_t *align, uint16_t block_a
 
 flatcc_builder_ref_t flatcc_builder_embed_buffer(flatcc_builder_t *B,
         uint16_t block_align,
-        const void *data, size_t size, uint16_t align, int flags)
+        const void *data, size_t size, uint16_t align, flatcc_builder_buffer_flags_t flags)
 {
     uoffset_t size_field, pad;
     iov_state_t iov;
-    int with_size = flags & flatcc_builder_with_size;
+    int with_size = (flags & flatcc_builder_with_size) != 0;
 
-    if (align_to_block(B, &align, block_align, !is_top_buffer(B))) {
+    if (align_buffer_end(B, &align, block_align, !is_top_buffer(B))) {
         return 0;
     }
     pad = front_pad(B, (uoffset_t)(size + (with_size ? field_size : 0)), align);
@@ -744,7 +745,7 @@ flatcc_builder_ref_t flatcc_builder_embed_buffer(flatcc_builder_t *B,
 
 flatcc_builder_ref_t flatcc_builder_create_buffer(flatcc_builder_t *B,
         const char identifier[identifier_size], uint16_t block_align,
-        flatcc_builder_ref_t object_ref, uint16_t align, int flags)
+        flatcc_builder_ref_t object_ref, uint16_t align, flatcc_builder_buffer_flags_t flags)
 {
     flatcc_builder_ref_t buffer_ref;
     uoffset_t header_pad, id_size = 0;
@@ -754,7 +755,7 @@ flatcc_builder_ref_t flatcc_builder_create_buffer(flatcc_builder_t *B,
     int is_nested = (flags & flatcc_builder_is_nested) != 0;
     int with_size = (flags & flatcc_builder_with_size) != 0;
 
-    if (align_to_block(B, &align, block_align, is_nested)) {
+    if (align_buffer_end(B, &align, block_align, is_nested)) {
         return 0;
     }
     set_min_align(B, align);
@@ -808,7 +809,7 @@ flatcc_builder_ref_t flatcc_builder_create_struct(flatcc_builder_t *B, const voi
 }
 
 int flatcc_builder_start_buffer(flatcc_builder_t *B,
-        const char identifier[identifier_size], uint16_t block_align, int flags)
+        const char identifier[identifier_size], uint16_t block_align, flatcc_builder_buffer_flags_t flags)
 {
     /*
      * This saves the parent `min_align` in the align field since we
@@ -820,7 +821,11 @@ int flatcc_builder_start_buffer(flatcc_builder_t *B,
         return -1;
     }
     /* B->align now has parent min_align, and child frames will save it. */
-    B->min_align = 1;
+    /* Since we allow objects to be created before the buffer at top level,
+       we need to respect min_align in that case. */
+    if (!is_top_buffer(B) || B->min_align == 0) {
+        B->min_align = 1;
+    }
     /* Save the parent block align, and set proper defaults for this buffer. */
     frame(container.buffer.block_align) = B->block_align;
     B->block_align = block_align;
@@ -845,9 +850,9 @@ int flatcc_builder_start_buffer(flatcc_builder_t *B,
 flatcc_builder_ref_t flatcc_builder_end_buffer(flatcc_builder_t *B, flatcc_builder_ref_t root)
 {
     flatcc_builder_ref_t buffer_ref;
-    int flags;
+    flatcc_builder_buffer_flags_t flags;
 
-    flags = B->buffer_flags & flatcc_builder_with_size;
+    flags = (flatcc_builder_buffer_flags_t)B->buffer_flags & flatcc_builder_with_size;
     flags |= is_top_buffer(B) ? 0 : flatcc_builder_is_nested;
     check(frame(type) == flatcc_builder_buffer, "expected buffer frame");
     set_min_align(B, B->block_align);
@@ -859,6 +864,8 @@ flatcc_builder_ref_t flatcc_builder_end_buffer(flatcc_builder_t *B, flatcc_build
     B->nest_id = frame(container.buffer.nest_id);
     B->identifier = frame(container.buffer.identifier);
     B->buffer_flags = frame(container.buffer.flags);
+    B->block_align = frame(container.buffer.block_align);
+
     exit_frame(B);
     return buffer_ref;
 }
@@ -1327,6 +1334,7 @@ flatcc_builder_ref_t flatcc_builder_end_table(flatcc_builder_t *B)
     flatcc_builder_ref_t table_ref, vt_ref;
     int pl_count;
     voffset_t *pl;
+    size_t tsize;
 
     check(frame(type) == flatcc_builder_table, "expected table frame");
 
@@ -1341,7 +1349,14 @@ flatcc_builder_ref_t flatcc_builder_end_table(flatcc_builder_t *B)
      * initial vtable offset field. Therefore `field_size` is added here
      * to the total table size in the vtable.
      */
-    vt[1] = (voffset_t)(B->ds_offset + field_size);
+    tsize = (size_t)(B->ds_offset + field_size);
+    /*
+     * Tables are limited to 64K in standard FlatBuffers format due to the voffset
+     * 16 bit size, but we must also be able to store the table size, so the
+     * table payload has to be slightly less than that.
+     */
+    check(tsize <= FLATBUFFERS_VOFFSET_MAX, "table too large"); 
+    vt[1] = (voffset_t)tsize;
     FLATCC_BUILDER_UPDATE_VT_HASH(B->vt_hash, (uint32_t)vt[0], (uint32_t)vt[1]);
     /* Find already emitted vtable, or emit a new one. */
     if (!(vt_ref = flatcc_builder_create_cached_vtable(B, vt, vt_size, B->vt_hash))) {
diff --git a/nostrdb/flatcc/flatcc_builder.h b/nostrdb/flatcc/flatcc_builder.h
index 3871b1d07..2e84d2979 100644
--- a/nostrdb/flatcc/flatcc_builder.h
+++ b/nostrdb/flatcc/flatcc_builder.h
@@ -710,10 +710,13 @@ static inline void flatcc_builder_refmap_reset(flatcc_builder_t *B)
 }
 
 
-enum flatcc_builder_buffer_flags {
-    flatcc_builder_is_nested = 1,
-    flatcc_builder_with_size = 2,
-};
+typedef uint16_t flatcc_builder_buffer_flags_t;
+static const flatcc_builder_buffer_flags_t flatcc_builder_is_nested = 1;
+static const flatcc_builder_buffer_flags_t flatcc_builder_with_size = 2;
+
+/* The flag size in the API needs to match the internal size. */
+static_assert(sizeof(flatcc_builder_buffer_flags_t) ==
+              sizeof(((flatcc_builder_t *)0)->buffer_flags), "flag size mismatch");
 
 /**
  * An alternative to start buffer, start struct/table ... end buffer.
@@ -776,7 +779,7 @@ enum flatcc_builder_buffer_flags {
 flatcc_builder_ref_t flatcc_builder_create_buffer(flatcc_builder_t *B,
         const char identifier[FLATBUFFERS_IDENTIFIER_SIZE],
         uint16_t block_align,
-        flatcc_builder_ref_t ref, uint16_t align, int flags);
+        flatcc_builder_ref_t ref, uint16_t align, flatcc_builder_buffer_flags_t flags);
 
 /**
  * Creates a struct within the current buffer without using any
@@ -867,7 +870,7 @@ flatcc_builder_ref_t flatcc_builder_end_struct(flatcc_builder_t *B);
  */
 int flatcc_builder_start_buffer(flatcc_builder_t *B,
         const char identifier[FLATBUFFERS_IDENTIFIER_SIZE],
-        uint16_t block_align, int flags);
+        uint16_t block_align, flatcc_builder_buffer_flags_t flags);
 
 /**
  * The root object should be a struct or a table to conform to the
@@ -923,7 +926,7 @@ flatcc_builder_ref_t flatcc_builder_end_buffer(flatcc_builder_t *B, flatcc_build
  */
 flatcc_builder_ref_t flatcc_builder_embed_buffer(flatcc_builder_t *B,
         uint16_t block_align,
-        const void *data, size_t size, uint16_t align, int flags);
+        const void *data, size_t size, uint16_t align, flatcc_builder_buffer_flags_t flags);
 
 /**
  * Applies to the innermost open buffer. The identifier may be null or
diff --git a/nostrdb/flatcc/flatcc_json_parser.h b/nostrdb/flatcc/flatcc_json_parser.h
index 1d4a1f8ab..1fa13764f 100644
--- a/nostrdb/flatcc/flatcc_json_parser.h
+++ b/nostrdb/flatcc/flatcc_json_parser.h
@@ -22,13 +22,12 @@ extern "C" {
 #define PDIAGNOSTIC_IGNORE_UNUSED
 #include "portable/pdiagnostic_push.h"
 
-enum flatcc_json_parser_flags {
-    flatcc_json_parser_f_skip_unknown = 1,
-    flatcc_json_parser_f_force_add = 2,
-    flatcc_json_parser_f_with_size = 4,
-    flatcc_json_parser_f_skip_array_overflow = 8,
-    flatcc_json_parser_f_reject_array_underflow = 16
-};
+typedef uint32_t flatcc_json_parser_flags_t;
+static const flatcc_json_parser_flags_t flatcc_json_parser_f_skip_unknown = 1;
+static const flatcc_json_parser_flags_t flatcc_json_parser_f_force_add = 2;
+static const flatcc_json_parser_flags_t flatcc_json_parser_f_with_size = 4;
+static const flatcc_json_parser_flags_t flatcc_json_parser_f_skip_array_overflow = 8;
+static const flatcc_json_parser_flags_t flatcc_json_parser_f_reject_array_underflow = 16;
 
 #define FLATCC_JSON_PARSE_ERROR_MAP(XX)                                     \
     XX(ok,                      "ok")                                       \
@@ -92,7 +91,7 @@ typedef struct flatcc_json_parser_ctx flatcc_json_parser_t;
 struct flatcc_json_parser_ctx {
     flatcc_builder_t *ctx;
     const char *line_start;
-    int flags;
+    flatcc_json_parser_flags_t flags;
 #if FLATCC_JSON_PARSE_ALLOW_UNQUOTED
     int unquoted;
 #endif
@@ -111,7 +110,7 @@ static inline int flatcc_json_parser_get_error(flatcc_json_parser_t *ctx)
     return ctx->error;
 }
 
-static inline void flatcc_json_parser_init(flatcc_json_parser_t *ctx, flatcc_builder_t *B, const char *buf, const char *end, int flags)
+static inline void flatcc_json_parser_init(flatcc_json_parser_t *ctx, flatcc_builder_t *B, const char *buf, const char *end, flatcc_json_parser_flags_t flags)
 {
     memset(ctx, 0, sizeof(*ctx));
     ctx->ctx = B;
@@ -237,30 +236,45 @@ static inline uint64_t flatcc_json_parser_symbol_part_ext(const char *buf, const
 {
     uint64_t w = 0;
     size_t n = (size_t)(end - buf);
+    const uint8_t *ubuf = (const uint8_t*)buf;
 
     if (n > 8) {
         n = 8;
     }
     /* This can bloat inlining for a rarely executed case. */
 #if 1
-    /* Fall through comments needed to silence gcc 7 warnings. */
     switch (n) {
-    case 8: w |= ((uint64_t)buf[7]) << (0 * 8);
-        fallthrough;
-    case 7: w |= ((uint64_t)buf[6]) << (1 * 8);
-        fallthrough;
-    case 6: w |= ((uint64_t)buf[5]) << (2 * 8);
-        fallthrough;
-    case 5: w |= ((uint64_t)buf[4]) << (3 * 8);
-        fallthrough;
-    case 4: w |= ((uint64_t)buf[3]) << (4 * 8);
-        fallthrough;
-    case 3: w |= ((uint64_t)buf[2]) << (5 * 8);
-        fallthrough;
-    case 2: w |= ((uint64_t)buf[1]) << (6 * 8);
-        fallthrough;
-    case 1: w |= ((uint64_t)buf[0]) << (7 * 8);
-        fallthrough;
+    case 8:
+        w |= ((uint64_t)ubuf[7]) << (0 * 8);
+        goto lbl_n_7;
+    case 7:
+lbl_n_7:
+        w |= ((uint64_t)ubuf[6]) << (1 * 8);
+        goto lbl_n_6;
+    case 6:
+lbl_n_6:
+        w |= ((uint64_t)ubuf[5]) << (2 * 8);
+        goto lbl_n_5;
+    case 5:
+lbl_n_5:
+        w |= ((uint64_t)ubuf[4]) << (3 * 8);
+        goto lbl_n_4;
+    case 4:
+lbl_n_4:
+        w |= ((uint64_t)ubuf[3]) << (4 * 8);
+        goto lbl_n_3;
+    case 3:
+lbl_n_3:
+        w |= ((uint64_t)ubuf[2]) << (5 * 8);
+        goto lbl_n_2;
+    case 2:
+lbl_n_2:
+        w |= ((uint64_t)ubuf[1]) << (6 * 8);
+        goto lbl_n_1;
+    case 1:
+lbl_n_1:
+        w |= ((uint64_t)ubuf[0]) << (7 * 8);
+        break;
     case 0:
         break;
     }
@@ -872,10 +886,10 @@ const char *flatcc_json_parser_union_type_vector(flatcc_json_parser_t *ctx,
  * `buf`, `bufsiz` may be larger than the parsed json if trailing
  * space or zeroes are expected, but they must represent a valid memory buffer.
  * `fid` must be null, or a valid file identifier.
- * `flags` default to 0. See also `flatcc_json_parser_flags`.
+ * `flags` default to 0. See also `flatcc_json_parser_f_` constants.
  */
 int flatcc_json_parser_table_as_root(flatcc_builder_t *B, flatcc_json_parser_t *ctx,
-        const char *buf, size_t bufsiz, int flags, const char *fid,
+        const char *buf, size_t bufsiz, flatcc_json_parser_flags_t flags, const char *fid,
         flatcc_json_parser_table_f *parser);
 
 /*
@@ -883,7 +897,7 @@ int flatcc_json_parser_table_as_root(flatcc_builder_t *B, flatcc_json_parser_t *
  * root.
  */
 int flatcc_json_parser_struct_as_root(flatcc_builder_t *B, flatcc_json_parser_t *ctx,
-        const char *buf, size_t bufsiz, int flags, const char *fid,
+        const char *buf, size_t bufsiz, flatcc_json_parser_flags_t flags, const char *fid,
         flatcc_json_parser_struct_f *parser);
 
 #include "portable/pdiagnostic_pop.h"
diff --git a/nostrdb/flatcc/flatcc_json_printer.h b/nostrdb/flatcc/flatcc_json_printer.h
index 612a7ada5..4fb2a37af 100644
--- a/nostrdb/flatcc/flatcc_json_printer.h
+++ b/nostrdb/flatcc/flatcc_json_printer.h
@@ -243,14 +243,13 @@ static inline void flatcc_json_printer_set_nonstrict(flatcc_json_printer_t *ctx)
     flatcc_json_printer_set_noenum(ctx, 0);
 }
 
-enum flatcc_json_printer_flags {
-    flatcc_json_printer_f_unquote = 1,
-    flatcc_json_printer_f_noenum = 2,
-    flatcc_json_printer_f_skip_default = 4,
-    flatcc_json_printer_f_force_default = 8,
-    flatcc_json_printer_f_pretty = 16,
-    flatcc_json_printer_f_nonstrict = 32,
-};
+typedef uint32_t flatcc_json_printer_flags_t;
+static const flatcc_json_printer_flags_t flatcc_json_printer_f_unquote = 1;
+static const flatcc_json_printer_flags_t flatcc_json_printer_f_noenum = 2;
+static const flatcc_json_printer_flags_t flatcc_json_printer_f_skip_default = 4;
+static const flatcc_json_printer_flags_t flatcc_json_printer_f_force_default = 8;
+static const flatcc_json_printer_flags_t flatcc_json_printer_f_pretty = 16;
+static const flatcc_json_printer_flags_t flatcc_json_printer_f_nonstrict = 32;
 
 /*
  * May be called instead of setting operational modes individually.
@@ -268,7 +267,7 @@ enum flatcc_json_printer_flags {
  * `pretty` flag sets indentation to 2.
  * `nonstrict` implies: `noenum`, `unquote`, `pretty`.
  */
-static inline void flatcc_json_printer_set_flags(flatcc_json_printer_t *ctx, int flags)
+static inline void flatcc_json_printer_set_flags(flatcc_json_printer_t *ctx, flatcc_json_printer_flags_t flags)
 {
     ctx->unquote = !!(flags & flatcc_json_printer_f_unquote);
     ctx->noenum = !!(flags & flatcc_json_printer_f_noenum);
diff --git a/nostrdb/flatcc/flatcc_version.h b/nostrdb/flatcc/flatcc_version.h
index 0e677d1c1..78bc9c8d3 100644
--- a/nostrdb/flatcc/flatcc_version.h
+++ b/nostrdb/flatcc/flatcc_version.h
@@ -2,12 +2,12 @@
 extern "C" {
 #endif
 
-#define FLATCC_VERSION_TEXT "0.6.1"
+#define FLATCC_VERSION_TEXT "0.6.2"
 #define FLATCC_VERSION_MAJOR 0
 #define FLATCC_VERSION_MINOR 6
-#define FLATCC_VERSION_PATCH 1
+#define FLATCC_VERSION_PATCH 2
 /* 1 or 0 */
-#define FLATCC_VERSION_RELEASED 1
+#define FLATCC_VERSION_RELEASED 0
 
 #ifdef __cplusplus
 }
diff --git a/nostrdb/flatcc/json_parser.c b/nostrdb/flatcc/json_parser.c
index 06f778da3..1c0128fd2 100644
--- a/nostrdb/flatcc/json_parser.c
+++ b/nostrdb/flatcc/json_parser.c
@@ -141,11 +141,10 @@ const char *flatcc_json_parser_space_ext(flatcc_json_parser_t *ctx, const char *
         ++buf;
     }
     while (buf != end && *buf <= 0x20) {
-        /* Fall through comments needed to silence gcc 7 warnings. */
         switch (*buf) {
         case 0x0d: buf += (end - buf > 1 && buf[1] == 0x0a);
             /* Consume following LF or treating CR as LF. */
-            fallthrough;
+            ++ctx->line; ctx->line_start = ++buf; continue;
         case 0x0a: ++ctx->line; ctx->line_start = ++buf; continue;
         case 0x09: ++buf; continue;
         case 0x20: goto again; /* Don't consume here, sync with power of 2 spaces. */
@@ -880,7 +879,7 @@ const char *flatcc_json_parser_char_array(flatcc_json_parser_t *ctx,
         if (ctx->flags & flatcc_json_parser_f_reject_array_underflow) {
             return flatcc_json_parser_set_error(ctx, buf, end, flatcc_json_parser_error_array_underflow);
         }
-        memset(s, 0, n - k);
+        memset(s, 0, n);
     }
     return flatcc_json_parser_string_end(ctx, buf, end);
 }
@@ -1258,12 +1257,12 @@ const char *flatcc_json_parser_union_type_vector(flatcc_json_parser_t *ctx,
 }
 
 int flatcc_json_parser_table_as_root(flatcc_builder_t *B, flatcc_json_parser_t *ctx,
-        const char *buf, size_t bufsiz, int flags, const char *fid,
+        const char *buf, size_t bufsiz, flatcc_json_parser_flags_t flags, const char *fid,
         flatcc_json_parser_table_f *parser)
 {
     flatcc_json_parser_t _ctx;
     flatcc_builder_ref_t root;
-    int builder_flags = flags & flatcc_json_parser_f_with_size ? flatcc_builder_with_size : 0;
+    flatcc_builder_buffer_flags_t builder_flags = flags & flatcc_json_parser_f_with_size ? flatcc_builder_with_size : 0;
 
     ctx = ctx ? ctx : &_ctx;
     flatcc_json_parser_init(ctx, B, buf, buf + bufsiz, flags);
@@ -1278,12 +1277,12 @@ int flatcc_json_parser_table_as_root(flatcc_builder_t *B, flatcc_json_parser_t *
 }
 
 int flatcc_json_parser_struct_as_root(flatcc_builder_t *B, flatcc_json_parser_t *ctx,
-        const char *buf, size_t bufsiz, int flags, const char *fid,
+        const char *buf, size_t bufsiz, flatcc_json_parser_flags_t flags, const char *fid,
         flatcc_json_parser_table_f *parser)
 {
     flatcc_json_parser_t _ctx;
     flatcc_builder_ref_t root;
-    int builder_flags = flags & flatcc_json_parser_f_with_size ? flatcc_builder_with_size : 0;
+    flatcc_builder_buffer_flags_t builder_flags = flags & flatcc_json_parser_f_with_size ? flatcc_builder_with_size : 0;
 
     ctx = ctx ? ctx : &_ctx;
     flatcc_json_parser_init(ctx, B, buf, buf + bufsiz, flags);
diff --git a/nostrdb/flatcc/portable/paligned_alloc.h b/nostrdb/flatcc/portable/paligned_alloc.h
index 3dcf4efcd..70b00b9ea 100644
--- a/nostrdb/flatcc/portable/paligned_alloc.h
+++ b/nostrdb/flatcc/portable/paligned_alloc.h
@@ -61,6 +61,8 @@ extern "C" {
 #define PORTABLE_C11_ALIGNED_ALLOC 0
 #elif defined (__clang__)
 #define PORTABLE_C11_ALIGNED_ALLOC 0
+#elif defined (__APPLE__)
+#define PORTABLE_C11_ALIGNED_ALLOC 0
 #elif defined(__IBMC__)
 #define PORTABLE_C11_ALIGNED_ALLOC 0
 #elif (defined(__STDC__) && __STDC__ && defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L)
diff --git a/nostrdb/flatcc/portable/pattributes.h b/nostrdb/flatcc/portable/pattributes.h
index 30b3b23d3..9240fa319 100644
--- a/nostrdb/flatcc/portable/pattributes.h
+++ b/nostrdb/flatcc/portable/pattributes.h
@@ -40,7 +40,7 @@ extern "C" {
 #endif
 
 #ifndef PORTABLE_EXPOSE_ATTRIBUTES
-#define PORTABLE_EXPOSE_ATTRIBUTES 1
+#define PORTABLE_EXPOSE_ATTRIBUTES 0
 #endif
 
 #ifdef __has_c_attribute
diff --git a/nostrdb/flatcc/portable/pparsefp.h b/nostrdb/flatcc/portable/pparsefp.h
index 1d2b9da26..7fa1c247d 100644
--- a/nostrdb/flatcc/portable/pparsefp.h
+++ b/nostrdb/flatcc/portable/pparsefp.h
@@ -5,6 +5,8 @@
 extern "C" {
 #endif
 
+#include <string.h> /* memcpy */
+
 /*
  * Parses a float or double number and returns the length parsed if
  * successful. The length argument is of limited value due to dependency
@@ -34,7 +36,7 @@ extern "C" {
  * Other compilers such as xlc may require linking with -lm which may not
  * be convienent so a default isinf is provided. If isinf is available
  * and there is a noticable performance issue, define
- * `PORTABLE_USE_ISINF`.
+ * `PORTABLE_USE_ISINF`. This flag also affects isnan.
  */
 #if defined(__GNUC__) || defined(__clang__) || defined(_MSC_VER) || defined(PORTABLE_USE_ISINF)
 #include <math.h>
@@ -44,12 +46,13 @@ extern "C" {
 #define isinf(x) (!_finite(x))
 #endif
 /*
- * clang-5 through clang-8 but not clang-9 issues incorrect precision
+ * clang-3 through clang-8 but not clang-9 issues incorrect precision
  * loss warning with -Wconversion flag when cast is absent.
  */
 #if defined(__clang__)
-#if __clang_major__ >= 5 && __clang_major__ <= 8
+#if __clang_major__ >= 3 && __clang_major__ <= 8
 #define parse_double_isinf(x) isinf((float)x)
+#define parse_double_isnan(x) isnan((float)x)
 #endif
 #endif
 #if !defined(parse_double_isinf)
@@ -64,19 +67,29 @@ extern "C" {
 #endif
 
 /* Avoid linking with libmath but depends on float/double being IEEE754 */
-static inline int parse_double_isinf(double x)
+static inline int parse_double_isinf(const double x)
 {
-    union { uint64_t u64; double f64; } v;
-    v.f64 = x;
-    return (v.u64 & 0x7fffffff00000000ULL) == 0x7ff0000000000000ULL;
+    uint64_t u64x;
+
+    memcpy(&u64x, &x, sizeof(u64x));
+    return (u64x & 0x7fffffff00000000ULL) == 0x7ff0000000000000ULL;
 }
 
 static inline int parse_float_isinf(float x)
 {
-    union { uint32_t u32; float f32; } v;
-    v.f32 = x;
-    return (v.u32 & 0x7fffffff) == 0x7f800000;
+    uint32_t u32x;
+
+    memcpy(&u32x, &x, sizeof(u32x));
+    return (u32x & 0x7fffffff) == 0x7f800000;
 }
+
+#endif
+
+#if !defined(parse_double_isnan)
+#define parse_double_isnan isnan
+#endif
+#if !defined(parse_float_isnan)
+#define parse_float_isnan isnan
 #endif
 
 /* Returns 0 when in range, 1 on overflow, and -1 on underflow. */
@@ -131,6 +144,79 @@ static inline const char *parse_float(const char *buf, size_t len, float *result
     return end;
 }
 
+/* Inspired by https://bitbashing.io/comparing-floats.html */
+
+/* Return signed ULP distance or INT64_MAX if any value is nan. */
+static inline int64_t parse_double_compare(const double x, const double y)
+{
+    int64_t i64x, i64y;
+    
+    if (x == y) return 0;
+    if (parse_double_isnan(x)) return INT64_MAX;
+    if (parse_double_isnan(y)) return INT64_MAX;
+    memcpy(&i64x, &x, sizeof(i64x));
+    memcpy(&i64y, &y, sizeof(i64y));
+    if ((i64x < 0) != (i64y < 0)) return INT64_MAX;
+    return i64x - i64y;
+}
+
+/* Same as double, but INT32_MAX if nan. */
+static inline int32_t parse_float_compare(const float x, const float y)
+{
+    int32_t i32x, i32y;
+    
+    if (x == y) return 0;
+    if (parse_float_isnan(x)) return INT32_MAX;
+    if (parse_float_isnan(y)) return INT32_MAX;
+    memcpy(&i32x, &x, sizeof(i32x));
+    memcpy(&i32y, &y, sizeof(i32y));
+    if ((i32x < 0) != (i32y < 0)) return INT32_MAX;
+    return i32x - i32y;
+}
+
+/* 
+ * Returns the absolute distance in floating point ULP (representational bit difference).
+ * Uses signed return value so that INT64_MAX and INT32_MAX indicates NaN similar to
+ * the compare function.
+ */
+static inline int64_t parse_double_dist(const double x, const double y)
+{
+    uint64_t m64;
+    int64_t i64;
+    
+    i64 = parse_double_compare(x, y);
+    /* Absolute integer value of compare. */
+    m64 = (uint64_t)-(i64 < 0);
+    return (int64_t)(((uint64_t)i64 + m64) ^ m64);
+}
+
+/* Same as double, but INT32_MAX if NaN. */
+static inline int32_t parse_float_dist(const float x, const float y)
+{
+    uint32_t m32;
+    int32_t i32;
+    
+    i32 = parse_float_compare(x, y);
+    /* Absolute integer value of compare. */
+    m32 = (uint32_t)-(i32 < 0);
+    return (int32_t)(((uint32_t)i32 + m32) ^ m32);
+}
+
+/* 
+ * Returns 1 if no value is NaN, and the difference is at most one ULP (1 bit), and the
+ * sign is the same, and 0 otherwise.
+ */
+static inline int parse_double_is_equal(const double x, const double y)
+{
+    return parse_double_dist(x, y) >> 1 == 0;
+}
+
+/* Same as double, but at lower precision. */
+static inline int parse_float_is_equal(const float x, const float y)
+{
+    return parse_float_dist(x, y) >> 1 == 0;
+}
+
 #include "pdiagnostic_pop.h"
 
 #ifdef __cplusplus
diff --git a/nostrdb/flatcc/reflection/flatbuffers_common_reader.h b/nostrdb/flatcc/reflection/flatbuffers_common_reader.h
index 6379c5864..c57530868 100644
--- a/nostrdb/flatcc/reflection/flatbuffers_common_reader.h
+++ b/nostrdb/flatcc/reflection/flatbuffers_common_reader.h
@@ -64,7 +64,6 @@ static inline TK ## _option_t N ## _ ## NK ## _option(N ## _table_t t__tmp)\
 #define __flatbuffers_offset_field(T, ID, t, r, adjust)\
 {\
     flatbuffers_uoffset_t *elem__tmp;\
-	printf("got here\n");
     __flatbuffers_read_vt(ID, offset__tmp, t)\
     if (offset__tmp) {\
         elem__tmp = (flatbuffers_uoffset_t *)((uint8_t *)(t) + offset__tmp);\